Island Hop (to the tune of "Thrift Shop")

Here we have the fourth song in the series, "Island Hop," to the tune of the very popular "Thrift Shop" by Macklemore.  Below is a link to the parody:

Here are the lyrics to the song:


Hey, Macklemore!  Can we go island hopping?

In-su-lar-ized...[x7]

Island, bio, geogra, phy... [x9]

[Hook:]
Australia and Tobag-
-o, Cross them both off my docket
Take a look at some of these animals close-up
Kakapo, Penguins and the Possum

[Verse 1:]
Nah, walk up to the map like, "What up with all these chunks of rock
Out in the deep blue sea, barely staying on top."
Ice in Antarctica, it's so dang frosty
That penguins like, "It's cold enough here to completely freeze a donkey."
Floatin' in, water's deep, I can see a dorsal fin,
Dressed for adventure, 'cept for one fact, I'm completely clean
Hoppin' off, walkin' round, I can really barely see
Probably should remember, there are some big animals here that need to eat-
(Hissssss)
But shoot, it's a Komodo Dragon! (Dang it)
Runnin' round, leap and bound, my death I hope to circumvent
Don't want to be a has been, someone needs to find my next of kin
But now I got a game plan
Run up to that tree and climb and
Wait up there 'til someone comes along and helps me down, really, it's a cinch
Next I'm off to Baffin Isle., turn the clock back awhile,
No for real - ask your grandpa - once the great auk here was found? (That's right)
Polar bears, arctic terns, and some things with flippers
And even more fossils if you just get diggin'
To avoid getting bored, let's head to the opposite seaboard
To the Channel Islands, much of which are rarely explored
Hello, say hello, to the Island Tree mallow,
The Channel Island fox and the introduced Catalina Island buffalo
Unfortunately, its now extinct, but at one point, there arose,
A 6-foot tall mammoth that would barely reach up to your nose

[Hook]
Australia and Tobag-
-o, Cross them both off my docket
Take a look at some of these animals close-up
Kakapo, Penguins and the Possum

[Hook]
Australia and Tobag-
-o, Cross them both off my docket
Take a look at some of these animals close-up
Kakapo, Penguins and the Possum

[Verse 2:]
What you know about island dwarfism?
What you know about the Cozumel Island fox, then?
I'm digging, I'm digging, I just can't find that page
An adult Cozumel's as big as a red one's pup
Thank your granddad for helping to slow the extinction and to-avert
'Cause right now we might still have the living thing
I'm in New Zealand, you can find me in (Wellington)
I'm not, I'm not sick of searchin' in that region (Wellington)
For the kea, the kiwi, the korora, the weka,
There ain't no native mammals in New Zealand, cept for bats, and of course whales and dolphins
Other marine ones like the seals and the sea lions
I hit the button and then through time we go flyin'
They be like, "Here we are at Hațeg - yo, let's check out the sites."
I'm like, "Whoa - that's Balaur and Hatzegopteryx."
Despite the transition, it's time to finish our mission
Magyarosaurus and Struthiosaurus - neither of which
Are very tall at all, they have both been shrimped
I call that island dwarfism at its most intenseness
That's not all that's here, though
Telmatosaurus, Bradycneme, and of course the Rhabdodon, or Rhabdodon't
But separating us from the mainland, no continental slope
In the future this place, separated from Romania it won't
Man it surely won't

(Hațeg...island dwarf...yeah!)

[Hook]
Australia and Tobag-
-o, Cross them both off my docket
Take a look at some of these animals close-up
Kakapo, Penguins and the Possum

[Bridge: x2]
Take the mainland and an island and juxtapose
It's quite incredible
They're surrounded by a moat
Which helps animals change their genetic code

[Hook]
Australia and Tobag-
-o, Cross them both off my docket
Take a look at some of these animals close-up
Kakapo, Penguins and the Possum

Is that your grandma's Balearic Islands cave goat?

Are you diggin' the songs?  Well, then check out our playlist below!

CLICK HERE TO BE DIRECTED TO A FUN-FILLED PLAYLIST OF AMAZING SONGS.

There Be Dragons

I think when it comes to reptiles, easily the most interesting are the monitor lizards and their relatives.  The monitor lizards are scientifically known as the members of the genus Varanus within the family Varanidae (which, in turn, is a family within the superfamily Varanoidea), and are widely considered to be the lizards with the most intelligence.  The largest extant (still living, opposite of extinct) lizard today, the Komodo dragon, is a member of this family, as is Megalania (often referred to as Varanus prisca), the largest known lizard ever to have existed.  Let's learn a bit more about these interesting reptiles!

According to a paper by American biologist Eric Pianka (link included in References section), the monitor lizards as a group are thought to have evolved on the continent of Laurasia (see map below) earlier than 65 million years ago (MYA), before even the dinosaurs died out.  After evolving in Laurasia, they then dispersed into the continents of Africa and Australia.  As of the writing of his paper, 44 species of monitor lizard are around today, with around 27 of these native to Australia, where the highest species density of monitor lizards are.  In the tropics of northern Australia, up to ten species of Varanus can reside together!

There are numerous families related to the monitor lizards within the superfamily Varanoidea, both living and dead, such as the earless monitor lizard, the sole member of the family Lanthanotidae.  The other extant family within the superfamily Varanoidea is the family Helodermatidae, which includes the beaded lizards and the Gila monster from southwestern North America, Mexico, and Guatemala.  However, in my opinion, it is the extinct family Mosasauridae that is the most interesting of the monitor lizard relatives.

The mosasaurs were the dominant marine predators throughout the Late Cretaceous Period, and were wiped out by the traumatic K/T Extinction Event, just like the dinosaurs.  Some of these mosasaurs could grow to enormous lengths, such as Tylosaurus, the apex predator of the Western Interior Seaway of North America during the Cretaceous Period.  Tylosaurus could grow to an enormous 50 or so feet long, and fossil discoveries of the stomach of this creature indicate that it fed on pretty much everything that swam in the sea: the remains of sharks, the flightless diving bird Hesperornis, fish, plesiosaurs, and even smaller mosasaurs have been found in the stomachs of Tylosaurus fossils!

The mosasaurs share something else in common with the monitor lizards: they both have a third eye on top of their head.  It's not the same as the eyes we have on our head, or even the eyes that the mosasaurs and monitor lizards have on their heads, either. A good comparison is if you close your eyes and look at a light source, and then move your hand back and forth in front of your face.  You can see something moving , right?  Just a shadow, but you can still tell that something is there.  That's kind of what the third eye of the monitor lizards and the mosasaurs is like.  If you are a baby Tylosaurus swimming in the sea and you see something pass overhead, you are going to swim to safety as fast as you possibly can: there are a lot of things in this sea that would barely noticed they swallowed you.  However, if you are a 50-foot long adult Tylosaurus and you see a shadow swim above your head, you are almost certainly going to go investigate.  Whatever it is, it's probably edible!

Another interesting thing that the mosasaurs most likely shared with the monitor lizards is their forked tongue, similar to that of snakes.  But what purpose does this forked tongue served?  Well, when the animal sticks the tongue out of its mouth, it is smelling the air.  As it draws the tongue back in, scent particles are pulled in as well.  The fork-tongued creature is able to determine which side of the forked-tongue has more scent particles on it.  If the animal was attempting to locate a dead animal or something like that, and its head was facing directly towards where the dead animal scent particles were floating from, the reptile would know that it was on the right track.  If, however, the fork-tonguer was facing due north, and the dead animal was due west of its position, when the tongue is drawn into the mouth, its owner can tell that there are more dead animal scent particles on the left side of the tongue, as opposed to the right, and now knows which way it must go to find its meal.  Pretty neat!

Can't get enough of the monitor lizards?  Well, below I have links to five videos featuring some monitor lizards (one spiny-tailed monitor, four Komodo dragon)!  Enjoy!

Spiny-Tailed Monitor Attempted Feeding

Komodo Dragon Moving Around at the Cheyenne Mountain Zoo

Komodo Dragon Relaxin' to the Maxin'

Up Close and Personal With The Komodo Dragon at the Cheyenney Mountain Zoo

Komodo Dragon Close Up at the Denver Zoo


And now, for some pictures of various monitor lizards I have taken over the years! First off is Herkemer, the resident Dumeril's Monitor Lizard at the Morrison Natural History Museum!

Next, we have a few photos that I took of one of the Komodo dragons at the Denver Zoo.

After that, we have a few Komodo dragon pics that I took at the Cheyenne Mountain Zoo!

Finally, we have a trio of pictures that I took of some tree monitors at the Cheyenne Mountain Zoo, as well!

And now, last but certainly not least, we have some pictures of some baby Komodo dragons at the Phoenix Zoo in Arizona!  They are pretty darn cute!
This was the birthday post of Gookhyun Jeong, happy birthday big guy!  And remember, if you have a birthday coming up, just email me the date at cuyvaldar123946@gmail.com with the date and your favorite animal, and I will do my best to get a post in! 

References:

http://www.conservation.org/FMG/Articles/Pages/gila_monsters_human_health_mexico.aspx

http://uts.cc.utexas.edu/~varanus/varanus.html

Top Ten Most Interesting Arboreal Mammals (Part 2)

Welcome to Part 2 of the Top Ten Most Interesting Arboreal Mammals in honor of the birthday of Charlie Bowers!  FYI, for those of you who don't know, arboreal means an animal that lives in the trees!  For Part 1 of this duology, click HERE.

5.  Fossa - The fossa has one of the most interesting and amusing scientific names: Cryptoprocta ferox.  Any guesses as to what that means?  If you guessed "Fierce Hidden-Anus," then you are spot-on!  Native to Madagascar (and, in fact, the largest carnivore of the "Lost Continent"), this cat-like creature is not actually a cat.  Instead, it is closely related to the civets and the genets, like the binturong.  To see a video of how incredibly acrobatic the fossa is, click HERE. 

4.  Cats - We talk about cats a LOT on this blog, and we are going to talk about them again today!  Quite simply put, cats are quite possibly the most acrobatic group of carnivores in the world.  Many of them are acrobatic on the ground (like the caracal, serval, and cheetah), while others are acrobatic in the trees.  Some of these are larger cats, like the leopard and the jaguar.  Others are smaller cats, like the ocelot and the margay, the latter of which can rotate its ankles around 180 degrees in order to climb down the trunks of trees head first!

3.  Ringtail/Cacomistle -  A member of the raccoon family Procyonidae like their relatives the coatis and olingos, the ringtail and the cacomistle are pretty obscure animals.  The ringtail actually lives as far north as southern Oregon, and throughout the southwestern United States, as well as in Mexico.  The range of the cacomistle actually overlaps that of the ringtail in Mexico, but the cacomistle also lives as far south as Panama.  They are both omnivorous, and insects, fruits, arthropods, and small vertebrates are important components of their diets.  They are also both listed as "Least Concern" by the IUCN.

2.  Tamandua -  Like all anteaters, the tree anteaters, such as the tamandua (pictured above) have very strong, large, and powerful claws, made to access the nests of ants.  These claws also happen to be perfect for climbing.  It's tail, like many other arboreal creatures, has evolved to be prehensile, which is an enormous benefit when climbing in the trees.  This fifth limb, if you will, is especially important when the tamandua has to tear into the bark of trees to expose the tasty insect treats within, helping to keep the tamandua from falling from the trees.  The tail is actually powerful enough to support the weight of the entire animal!  You don't often think of anteaters climbing around in the trees, which is why I think that the tree anteaters are excellent candidates for our number two spot on the list.  To see a video of the tamandua in action, albeit in Russian or something (it doesn't really matter, just watch without audio or something, but make sure to watch from 1:00 onwards) click HERE.

1.  Tree Kangaroos - Sometimes, nothing is quite as funny as a kangaroo.  But imagine a smallish kangaroo hopping around in the trees, a hundred feet or more above the ground.  Believe it or not, such a thing exists!  Having evolved from the rock-wallabies (who are in turn thought to have evolved from the pademelons), the tree kangaroos are pretty awesome creatures!  Reportedly pretty clumsy in the trees, it is hypothesized that, if there were any significant predators in the area (like many of the carnivores that we have been talking about in these two posts), the tree kangaroo would have either have had to evolve, or they would have been hunted into extinction by these predators.  Since it is so clumsy, and it spends so much of its time between 70 and 100 feet above the rainforest floor, the tree kangaroo has adapted to large and significant falls from high in the sky.  They can fall around 60 or 70 feet with no physical harm!  Don't believe me?  Once you click the video link HERE to learn more, go ahead to about 5:10 if you want the skinny.  You will be able to enjoy a tree kangaroo falling!  And don't worry, it won't be hurt: just check out the video!

Top Ten Most Interesting Arboreal Mammals (Part 1)

Today, in honor of the birthday of Charlie Bowers, we are going to be taking a "Top Ten" approach to some pretty cool arboreal mammals.  FYI, for those of you who don't know, arboreal means an animal that lives in the trees!  So let's dive right in!  For Part 2 of this duology, click HERE.

10.  Squirrel - Although a fairly common animal and really not that exciting at first glance, the squirrel is actually quite the exciting animal!  Incredibly acrobatic, the squirrel is superbly adapted for an arboreal lifestyle.  Need more proof?  Click the link right HERE to be amazed!

One of the koalas at the San Diego Zoo in California.  Photo Credit: Julie Neher

9.  Koala -  Other than the kangaroo, the koala is probably the most iconic Australian marsupial.  Many myths abound in regards to the koala.  For example, many people believe that the koala is constantly "adjusting its altitude," so to speak, due to something in the leaves of the eucalyptus trees that they consume.  While it seems quite likely that the koala is constantly baked due to its lackadaisical attitude, it's not actually true: the koala just spends a great deal of its day asleep in order to digest the tough vegetation that composes its diet.  As a matter of fact, the 20-22 hours a day the koala sleeps makes it the sleepiest  mammal!  (For more information about the koala and its digestion, click HERE). 

8.  Primates - Perhaps the order of mammals that is most superbly adapted to a life in the trees, the primates include everything from the aye-aye to the orangutan, from the tarsier to us humans!  Thought to have started evolving in North America or Asia around 65 MYA or so, before even the dinosaurs died out, today there are over 200 extant species, with new ones still being discovered, like the lesula monkey that was discovered in the Democratic Republic of the Congo in 2012 (pictured above).

7.  Binturong - Often called the "Bear-cat," the binturong is the largest of the strange group of animals known as the civets.  (For more about civets and their relatives, click HERE).  Native to southeastern Asia, the binturong is omnivorous, but seems to consume fruit the most in its diet, and is particularly partial to figs.  Although the binturong is labeled as "Critically Endangered" in China, the IUCN labels the species as a whole as merely "Vulnerable."

6.  Sloth - When you hear the word "sloth," you might think of someone or something being lazy.  There is a very good reason for that association: the sloth is quite sloth!  As David Attenborough says in the excellent BBC production "Life of Mammals," "The sloth moves as if it's powered by the wrong sort of batteries."  Sleeping around 20 hours a day, the sloth is the second sleepiest mammal, right after the koala.  While it sleeps, the sloth hangs upside down from tree branches.  Sounds like a lot of work, right?  Actually, it really isn't: the sloth simply hooks its claws over the tree branch, and relaxes all of its muscles.  If a human hunter shoots a sloth hanging from a tree, it will usually simply remain hanging from the tree branch, anchored by its claws!  Then the hunter actually has to physically climb up into the tree to retrieve its prize!

The Ancestral Australian Aborigines As a Possible Cause for the Extinction of Australia's Pleistocene Marsupial Megafauna

A few weeks ago, in my Anthropology class, we had to do a cultural profile of one culture group of humans.  I chose the Australian Aborigines and, having just finished Tim Flannery's excellent book "Chasing Kangaroos," this whole concept of the Ancestral Aborigines being the possible cause of the extinction of Australia's Pleistocene megafauna was still quite fresh in my mind, so I included it in the paper.  I thought it was pretty interesting, and so I have decided to share it with ya'll, too, with a few brief modifications to make it more Blog friendly!  Hope you enjoy, and if you want a more comprehensive look at the topic, I highly recommend "Chasing Kangaroos!"

Interestingly, paleontologists today are using the Australian Aborigines to help them figure out when Australia's Pleistocene megafauna went extinct.  While today, there are no native animals larger than the red kangaroo, Pleistocene Australia was a very different place, as was the rest of the world.  The Pleistocene Epoch was the time of the Ice Age megafauna.  With the exception of Africa and south-east Asia, in most places nowadays, the Pleistocene megafauna is extinct, but back then, the megafauna were a world-wide phenomenon.  In Eurasia, there were the giant mammoths and rhinoceroses, the cave lions and hyenas, the Irish elk, and the giant polar bear.  In North America, there were the mammoths and mastodons, the short-faced bear, the giant bison, the dire wolf, the giant beavers, and the saber-toothed cats.  In South America, there were the giant ground sloths, the armored glyptodonts, and many large relatives of elephants.  

Australia also had its fair share of Pleistocene megafauna, with marsupial lions, the giant short-faced kangaroos, the hippo-sized wombat Diprotodon, and echidnas that were the size of sheep.  There are two main hypothesis when it comes to what caused the extinction of all these animals: climate change, or hunting by early human arrivals on Australia, the first Aborigines.  No one could figure out whether it really was the Aborigines that had hunted the megafauna to extinction, though, because no one could figure out the date that the megafauna had gone extinct, nor could they figure out the date that humans first arrived on Australia.  Some people believed that the megafauna survived until around 6,000 years ago, while others believed that they went extinct a great many years prior.  The same difficulties confronted those scientists attempting to determine when humans first arrived.  The sediments of Australia are notoriously hard to date, and since the animals of Australia are so unique (especially following the extinction of the dinosaurs), scientists were unable to correlate their data with other places around the world.[1] 

As more scientific discoveries were made, a new method of dating rocks was discovered, called optically stimulated luminescence (or OSL for short).  Using OSL, paleontologists were successfully able to date many different specimens of the various marsupial Pleistocene megafauna, and found that, while many of them approached the 46,000 years ago mark, none of them passed it.  Many different specimens were used from all across Australia, but they all said the same thing: 46 was the answer. 

Meanwhile, with the new OSL tool in their bag, other scientists headed off to sites of known human habitation to attempt to date them as well, and these efforts proved to be successful.  One of the main places that they dated was a place known as Devil’s Lair, a known area of ancient Aboriginal inhabitance.  What was especially important about Devil’s Lair was that there was sediment present for the last 63,000 years, meaning that instead of just a snapshot of time, the scientists had an uninterrupted sequence of time to figure out when humans started living there.  As the scientists dated the sediments with the first signs of human inhabitance, they came up with the magic number: 46,000.  Other sites came up with the same number too, including Lake Mungo, the oldest human burial known from Australia.  At Lake Mungo, the dates were a bit less precise, ranging from between 45,000 and 47,000 years ago, but the data still seems to point in the same direction.  The ancestral Aborigines arrived on the continent at around the same time that Australia’s Pleistocene megafauna went extinct.  With this new dating technique, scientists were also able to determine that there was no significant climate change for many thousands of years on either side of the 46,000 mark, effectively ruling out that hypothesis.  So it seems that, for a time, the people who believe themselves as part of the land and the natural world around them actually destroyed a significant part of it.

[1] For example, paleontologists studying dinosaurs of the Late Jurassic Morrison Formation here in Colorado are able to look at closely related dinosaurs in other parts of the world like the UK and southern Africa (keep in mind that the continents were all together in one big landmass back then.)  That way, if the paleontologists are unable to determine the dates of, say, the Tendaguru Formation in Tanzania, they can look to the studies done on the rocks of the Morrison Formation for an accurate estimation.  This is a luxury that paleontologists, archaeologists and other scientists working in Australia simply do not have. 

Mildura on Dwellable

He Should Have Just Played Dead, Man

For those of you who are acquainted with the top-notch television show "Psych," you might be familiar with the "High Top Fade Out" episode with Blackapella.  If you are not familiar then you are very confused and wondering what is going on.  Bear with me, bad pun intended.  At one point in the episode, Joon, played by Keenan Thompson, says of a recently murdered friend, "He should’ve just played dead, man. I always said that’s what I would do if somebody was trying to kill me. Just play dead. I mean, they’d be like, 'We’re gonna kill you!' And then I’d be like - dead - and then they’d be like, 'Oh he’s dead, let’s go kill somebody else.' And then they would leave."

Despite the fact that this was a humorous scene in a humorous television show, Joon's logic is not terrible.  While it may not work all that well for a human, it does work quite well for a different animal: the Virginia opossum.

Despite the fact that one typically thinks of Australia and New Guinea when one hears the word "marsupial," marsupials are actually found throughout South America, and even in North America as well!  The Virginia opossum is actually the only marsupial to be found in North America north of Mexico, and is around the size of a house cat, European wildcat, Geoffroy's cat, African wildcat, marbled cat, margay, leopard cat, pampas cat, sand cat, oncilla, kodkod, black-footed cat, flat-headed cat, or the rusty-spotted cat.  (And yes, I am setting up a cat feature for next week). 

Originally native only to the east coast of the United States (i.e. Virginia, Tennessee, Kentucky, Florida, Massachusetts, etc.), it was introduced to the west coast around the time of the Great Depression, likely for use as food.  Below is a map of its range today.

Anyways.  Have you ever heard someone use the expression "playing possum?"  This expression originates from an odd but effective behavior employed by the Virginia opossum: it feigns its own death!  Scientists believe that this is an involuntary reaction on the part of the opossum when it experiences fear.  The fear reportedly has to be intense, however, as if the opossum is only mildly afraid, then it will react fiercely, screeching, hissing, and just generally freaking out its antagonist.  Who wants to mess with an angry possum?

If the opossum becomes stressed enough, though, it will collapse into a coma-like state, sometimes for as long as four hours.  While in this coma, the opossum will secrete a green fluid from its anus, a terrible smelling mixture, to make predators think that it is a gross and diseased carcass so they don't mess with it.

Of course, if an opossum becomes super stressed because it sees a car screaming down towards it on a road, I'm guessing that playing dead will only be a temporary measure.  Cars don't appear to have made that big of a dent in the populations of these creatures, as they are labeled "Least Concern" by the IUCN. 

One final thing about the Virginia opossum!  When we were on our California/Oregon driving trip in 2011, we found a hilarious poster like the one below in a shop window!  I laughed so hard!

This birthday post goes out to Chris Koreerat, happy birthday Chris!  If you have a birthday coming up, just email me the date at cuyvaldar123946@gmail.com with the date and your favorite animal, and I will do my best to get a post in!

Gatlinburg City on Dwellable

Cheyenne Mountain Zoo Adventures and Island Lecture Thank You

First off, I would like to thank everyone who was able to come out for my "Island Living" lecture last Friday!  It was a ton of fun, and we were able to raise a significant amount of money for the Madagascar Ankizy Fund!  We put the "Fun" in "Fund."  Nothing like a terrible pun.

Anyways, if you missed it, here is the link to the youtube video.  Not the best quality, but still fairly interesting!  If you are interested in a specific section of the presentation, I have where each part starts and stops down below.

https://www.youtube.com/watch?v=f-VkcirjWfU

Intro:  00:00-02:27
The Galápagos:  02:27-05:21
Penguins:  05:21-15:07
Flightless Birds:  15:07-20:30

NOTE:  SOMEWHERE WITHIN THE FLIGHTLESS BIRDS SECTION, MY MICROPHONE WENT OUT.  YOU CAN STILL HEAR ME TALKING, BUT YOU JUST HAVE TO TURN THE VOLUME UP REALLY LOUD.  IT IS NOT YOUR COMPUTER, IT IS THE MIKE RUNNING OUT OF BATTERIES.

Wallace's Line:  20:30-22:11
The Monotremes:  22:11-25:43
Herbivorous Australian Marsupials:  25:43-35:54
Carnivorous Australian Marsupials:  35:54-41:53
The Komodo Dragon and Other Insular Reptilian Megafauna:  41:53-45:59
The Dwarf Dinosaurs of Hațeg Island:  45:59-51:54
Island Dwarfism and the Origins of the Cyclops, Mermaid, Griffin, and Bigfoot:  51:54-59:37
The Aye-aye, Outro and Questions, and Two Funny Penguin Videos:  59:37-End 

Secondly, I would like to bring to your attention a few other youtube videos that I uploaded a month or so back.  A few months ago, my father, sister and I went to visit my grandparents in Colorado Springs, and, like we always do, we went up to the Cheyenne Mountain Zoo.  They had given me their camera the night before, so I took many pictures, but I also took a few videos.  We can talk about the pictures some other time, but the videos I wanted to bring to your attention, as I will probably be making a few more this weekend, as my father and I, along with my friend Masaki Kleinkopf, are going down to visit.  This time, my grandparents have gotten a few behind the scenes experiences in store for us, but I'm not going to spoil the surprise!  

The videos are in the playlist labeled "Cheyenne Mountain Zoo Adventures With Zack Neher."  There are only four videos so far, but they are all pretty exciting, if I do say so myself.

Mountain lion feeding and training at the Cheyenne Mountain Zoo

The first two clips are easily the most interesting.  They both document part of a mountain lion feeding and training thing.  It is really interesting!  At the beginning of the ten or fifteen minute long demonstration, the puma in question seemed to not really know what to do at all.  However, at the end, it seemed quite familiar with the routine; attack the tire swing thingy, and then you get food!  I believe that a one paw attack received less of a food reward than a double-pronged attack, but I am not certain.   Anyways, so I have one really super cool clip of the training, as well as another cougar-themed clip.  In the second one, you get to see a mountain lion quickly clamber up a steep slope.  Before you watch the video, though, make sure you read the description!

Clip One: Mountain Lion Feeding Demonstration

Clip 2: Humor and Mountain Lions

Mountain lion feeding and training at the Cheyenne Mountain Zoo

The third clip is a short little video that I got of the Siamang gibbons vocalizing.  They are quite interesting creatures, in that they expand this large pouch underneath their throat when making some noise.  Watch for that in the video clip!

Siamangs Make Some Noise

The last clip was recorded shortly after the last one.  After looking at the Siamangs, we mosied on over to the orangutan enclosure, which is a very short distance away.  We, and you as well, can still hear the Siamangs vocalizing in the video.  The video starts off with a very cute baby orangutan playing with a large piece of cardboard.  After watching the baby for a little bit, it shows the mother orangutan climbing for a few seconds.  Then, I go back over to the Siamangs, as they are continuing to make a lot of noise.

Baby Orangutan and Siamang Song

The mother orangutan at the Cheyenne Mountain Zoo

The baby orangutan playing at the Cheyenne Mountain Zoo

An interesting feeding technique employed by one of the orangutans at the Cheyenne Mountain Zoo

War of the Wombats

There are three different types of wombat.  There is the common wombat (Vombatus ursinus), the southern hairy-nosed (Lasiorhinus latifrons) and the northern hairy-nosed (L. krefftii).  They have been classified by the IUCN, respectively, as Least Concern, Least Concern, and Critically Endangered.  Unfortunately, all three wombats face threats that could easily result in their extermination from the wilds of the earth.  Fortunately, steps are being taken to prevent such a wombacide.

In Queensland, Australia  lies Epping Forest National Park.  In just two square miles of this park live the last ninety individuals of the northern hairy-nosed wombat.  Surrounding this puny area is a 20 kilometer long perimeter fence, erected after 10 wombats were killed by dingoes a few years ago, which, considering the severity of a ten percent population loss in such a small population, makes total sense.

Although these steps are being taken to protect the northern hairy-nosed, this species of wombat still faces several severe problems.  One such problem is the fact that 75% of these wombats are male, making a boom in their population more difficult to achieve.  Fortunately for the northerners, the southern hairy-nosed wombat has a very similar reproductive system as the northern hairy-nosed.  Scientists are therefore using female southerners as surrogate mothers for the northerners.  This method is referred to as "cross fostering," and has been used successfully when it comes to other marsupials.

The other major problem confronting the northern hairy-nosers is the fact that all of the animals are located in the same place.  In the event of a disease, wild-fire, or some other similar catastrophe, most or all of these creatures could be exterminated in the virtual blink of an eye.  Conservationists think it wise to create a second population of northerners, not too far away from the first, but far enough away to ensure that a disaster could not take out both populations with one fell swoop.  Scientists and conservationists have decided that it would be most beneficial to the northerners if they were to assist in their burrow construction.

These burrows, which can be over 100 feet long, would be time-consuming construction projects.  Not only that, but a single wombat will often use up to five different burrows, moving to a different one each day.  The first wombat doesn't just leave his or her old burrow unoccupied, however, as another wombat, probably the same one every five days or so (I would guess), temporarily moves in.  It's really less of a permanent residence, like a house, and more of a time-share condo.

But just how time and energy consuming would it be to dig such a burrow if you were a wombat?  Wombats have a problem with keeping cool.  If you ask my opinion, I suspect it has a lot to do with their body design.  As we discussed a few posts ago, animals that live in hot environments typically adapt in ways to increase their Surface Area to Volume ratio, or SA:V for short.  To learn more about why this is, click HERE.  However, fossorial, or burrowing, animals, like the wombat, aardvark, marsupial mole, and many, many others, try to keep their bodies streamlined.  Like dolphins and sharks, these animals want to be able to glide smoothly through their desired area (be it water or burrows).  Having random chunks of body, i.e. the ears of an elephant or a deer, would merely slow the animal down.  That is my theory, anyways.

To keep cool in the heat of the Australian day, wombats will take refuge in their burrows.  However, to be efficient enough when it comes to trapping moisture (as water can often be very difficult to come by in the habitat of the northerns), it has been estimated that the burrow would need to exceed fifteen feet in length.  It has also been calculated that the approximate amount of energy required for a wombat to dig a three foot long chunk of burrow is about the amount of energy that a wombat would expend running twelve miles.  That means for the comforting fifteen foot length of burrow, the wombat could instead run about sixty miles.  Clearly no small effort.

The way that the scientists actually figured all of this out was really quite interesting.  To see how long it takes for a wombat to dig a burrow, experimenters Glen Shimmin and David Taggart put one wombat into a box.  (Equipped with breathing holes, of course.  As pirates and I like to say, "A dead wombat digs no holes").  The human duo then dug a hole in the ground the same size as the box.  Placing the wombat-infested box into the ground, they then opened up one end of the container, allowing the wombat free access to the soil.  Instinctively, the wombat would begin to dig.  A half an hour later, Shimmin and Taggart ceased the wombat-excavation, and carefully measured how much dirt was displaced by the wombat, as all of the displaced dirt would conveniently be shoved (by the wombat) into the box!  Convenient, huh?  During the half hour digging session, the wombat moved more than 100 pounds of dirt!  Impressive, but the team concluded that, if conservationists were to release a group of northern hairy-nosed wombats into their new territory without pre-dug burrows, it was incredibly likely that the wombats would simply dig themselves to exhaustion, and subsequent death.  An undesirable outcome for all parties involved, it was decided to dig man-made burrows, resembling those of wombats, throughout the habitat, prior to the installation of the wombat center-piece.

What are some other problems facing wombats?  Well for starters, some of these problems, even when facing the wombats in the face, are virtually invisible to them.  Wombats, like Stegosaurus, rhinos, and myself (without my contacts), are virtually blind.  You don't need eyes if you are a fossorial (burrowing) creature; just ask the marsupial mole, the golden mole, or many other types of fossorial animals who no longer use, or even have, eyes!  However, when it comes to crossing roads, their terrible eyesight really takes its toll.  Hundreds, if not thousands, are hit by cars each year.

Other problems include starvation, drought, mange, and other people problems.  Starvation can be easily caused by the gradual squeezing out of the native grasses typically consumed by wombats by other, inedible grasses.  Drought should be self-explanatory; without water, the food dies.  Without water, there is no water.  Both are not good for wombats.  Mange, for wombats at least, is a fatal skin disease.  And as for the other people problems?  Let's just say that prairie dogs can relate.  (And now, even though I just said "Let's just say," I am going to go into more detail).  Like prairie dogs, wombats burrow.  And also like prairie dogs, the habitat of the wombat is perfect for ranchers.  So it goes like this.  Ranchers come along, and bring their cattle.  The cattle step in prairie dog/wombat holes, break their legs, and die.  The ranchers, enraged, take their rage out on the culprits: the prairie dogs or the wombats.  And as we have discussed before, wombat burrows can be quite extensive.  Furthermore, the entrance holes would have to be quite fat in order to accomodate such...robust occupants. 

As we have also previously discussed, much is being done in order to protect the wombat.  Another bit of good news is that a population boom of around 10% was recorded for the sole population of the northern hairy-nosed wombat!  Another wee bit of hope in a world that we willfully wish not to become wombatless.

WOMBAT FACTS:

1. Cooling Off:  Besides retreating into their burrows, wombats will also flick dirt onto their bodies to keep cool.
2. Olympic Runners:  Despite its dumpy appearance, the wombat can reach a top speed of around 25 mph.  This means that it can outrun an Olympic sprinter, like Usain Bolt!
3. Cooling Off V 2.0:  Besides retreating into their burrows and flicking dirt onto their bodies, wombats are also nocturnal, meaning that they avoid the heat of the day.
4. Life Span:  Wombats can live around twenty years.
5. Wombat Wesearch:  Prior to around fifteen or so years ago, not much research had been done on wombats.  Most of what we know has been discovered since that time.
6. Power House Excavators:  For their size, wombats may be the world's most powerful excavators.

Whitsunday Islands on Dwellable

Penguin Party: The Korora and the Magellanic

Today's post is devoted to two of the seventeen (debatably a lower number) of the extant penguin species, the Korora (commonly known as the little blue penguin, the blue penguin, the little penguin, or the fairy penguin), and the Magellanic penguin.  What's the connection with these two penguins?  Well, not really anything, except for the fact that we had just talked about the Korora in a post a few weeks ago, and I had found a few funny videos of both the Korora and the Magellanic! 

The Korora is actually believed to be fairly closely related to the Magellanic penguin, compared to most of the rest of the penguins.  Despite the differences in their genus (the Magellanic belongs to the genus "Spheniscus" and the Korora to the genus "Eudyptula,") most scientists believe that the Eudyptula penguins (only one extant, but likely extinct ones) were the last ones to diverge from the Spheniscus genus. 

As we talked about a few weeks back, the Korora is labeled as "Least Concern" by the IUCN, and inhaibts Australia and New Zealand, as well as a few other random islands in the vicinity.  Interestingly enough, the Korora has also been reported in Chile and South Africa, although the probability of these animals being vagrants (essentially, lost) is quite high.  However, most penguinologists are certain that many populations of penguins started out as vagrants, so who knows!  It is how they would get from one place to another. 

The Penguin Parade (see below) is a major tourist attraction.

The penguin parade.  Photo Credit Mark and Julie Neher

HERE is a link to a clip talking a bit about the Penguin Parade.  The clip talks a bit about the work done by the rangers and scientists regarding the Korora, including ranger Ashley Belsar.  For over thirty years, since 1968, this research team has been recording information about the penguins as they come ashore.  An interesting statistic that I learned from this video is that the average penguin spends about 80% of its life in the ocean!

And for those of you who want something a bit more"cutesie," HERE is a video of Cookie, the Korora, being tickled by humans at the Cincinnati Zoo in Ohio!

Native to the South American countries of Chile, Argentina, and occasionally Brazil, the Magellanic penguin is one of four of the Spheniscus genus of penguins, including the African, Humboldt and Galápagos penguins.  Labeled as "Near Threatened" by the IUCN, somewhere in the neighborhood of 40,000 of these penguins are killed each year by oil spills, which has resulted in their decreased IUCN status.

Next, we have two amusing Magellanic penguin videos.  The FIRST is of a Magellanic on a plane, and the SECOND is a trio of Magellanics who accidentally knock over the camera that is filming them.  Enjoy!

Now, we have a few really cute pictures of some of the Magellanic penguins from Sea World: Orlando in Florida!  The second two photos are from a publicity thing where some people from Sea World: Orlando brought some Magellanics to the Star newsroom!  How cute!

Phillip Island on Dwellable

Guards of the Fairy Penguin

In the summer of 2009, a number of brutal attacks in Sydney, Australia left nine victims dead.  According to BBC, “the mutilated bodies...were found in a national park near Sydney harbour.”  Autopsies performed on the bodies reveal that the murderers were most likely foxes, although dogs remain a definite suspect.

A picture of the red fox outside of the house in Breckenridge, Colorado, that our friends the Beckleys rented one summer.  It's an awesome place to stay, I tell you what!  Photo Credit: Julie Neher

There is more to this story than has been revealed thus far.  The nine victims were not humans; instead, they were korora, or little blue penguins, also often called fairy penguins. You would be excused for thinking that the victims were, in fact, humans, especially once you learned the whole story.

In an interview with BBC, Sally Barnes of the New South Wales Parks and Wildlife Service detailed what the group has been doing to protect the penguins from the dogs and foxes.  As well as raising public awareness, the NPWS has been baiting and trapping the predators, and “As a last resort, we’ve also had shooters out.” 

In this case, shooters means snipers.  That’s right; the Parks and Wildlife Service deployed two professional sharpshooters in order to ensure the safety of these penguins.  Armed with night-vision goggles, rifles, and orders to shoot to kill, these may be the most extreme methods used to protect penguins ever employed. 

The penguins are being further protected by vigilantes from the Manly Environment Centre, vowing that they will do “whatever it takes” to protect the penguins, and planning on assisting the snipers in keeping a sharp eye on the birds 24/7. 

Why is this colony such a big deal?  The kororaa is labeled as “Least Concern” by the IUCN.  Well that may be true for the total population of korora, but this colony is falling by the wayside.  As you can see in the map, the area where the colony is located is quite busy, and not ideal penguin habitat.  However, these penguins cannot be relocated; like many birds, they always return to where they themselves were raised to come ashore and raise their own chicks.  The people of Sydney also take pride in their colony of korora’s, as it is the sole population located in New South Wales.  The people at the Manly Environment Centre report that their efforts are, by and large, successful, and the korora’s numbers are on the rise.

Sydney on Dwellable