Showing posts with label Dolphin. Show all posts
Showing posts with label Dolphin. Show all posts

Saturday, June 1, 2013

Whales In Music: An Interview With Alex Shapiro, Composer

So a month or two ago, I went down to Greeley, Colorado to see my good friend Masaki Kleinkopf perfom in the All State Concert Band.  One of the songs that they played there was a piece by composer Alex Shapiro entitled "Immersion."  One of the movements in the piece was entitled "Beneath," and it was particularly interesting!  In it, the band played with one of the most musical animals in the world: the whale!  I was very interested in this piece and the work that went into it, so I contacted the composer and asked her a few questions, and she was kind enough to oblige!  I found her answers very, very interesting, and I hope you guys find them as interesting too!
Alex Shapiro!  Photo Credit: Paul Chepikian
The Natural World:  What made you decide on including whale song in the piece?

Alex Shapiro:  Interestingly, the choice wasn't pre-meditated; the song found me, and I welcomed it in unexpectedly. To back-track for a moment, BENEATH-- for symphonic wind band and prerecorded electronics-- was originally a far more intimate piece for contrabass flute and that very same prerecorded electronic track, titled BELOW. Anyone curious can hear excerpts from both versions of the music: the original solo piece for contrabass flute and prerecorded electronics, BELOW:

http://www.alexshapiro.org/Belowpg1.html

And the version I later created, using the exact same track, for symphonic wind band, titled BENEATH:

http://www.alexshapiro.org/Immersionpg1.html

Around the same time that I was beginning to think about a commission from the wonderful flutist Peter Sheridan for what ended up becoming BELOW, I happened to be poking around on the NOAA Vents Program website (http://www.pmel.noaa.gov/vents/index.html), fascinated by the sounds from our oceans. If I weren't a musician, I might have become a marine biologist, and I also have a fascination with the geology of the ocean floor. I found-- and ended up using to open and close the piece-- a recording of a volcanic eruption from the floor of the Pacific. Perusing the NOAA website, I clicked through to the area with whale songs (http://www.pmel.noaa.gov/vents/acoustics/sounds_whales.html) and from there, I found my way to many other websites with marine mammal audio files. And that's how I discovered the whale who I realized would be a perfect duet partner with Peter. The song was so haunting, I just had to use it as the centerpiece of the music.

TNW:  What specific whale did you choose?

AS:  The recording I use is that of a male Pacific Humpback whale; I'm told that they're the ones who do the best singing. I actually listened to a couple of hundred whale songs from seven or eight different kinds of whales before I came across this heart-wrenchingly beautiful song. I became adept at hearing the differences in the vocalizations of each species, and could identify a Minke from a Blue from a Sperm just from the audio. Orcas-- the most familiar whales where I live on San Juan Island, Washington, are easy to discern because, as members of the dolphin family, they make high-pitched chirps. Like the Orcas, many whales don't have a song that lends itself as well to human composition needs when it comes to melody (I place the blame for this on the limitation of our musical language, not theirs!). Too many short blasts, pulses, and other non-linear sounds (all of which are great for rhythm, though!). But the Humpback really does sound much more like a human voice, and when I found this particular song, I was mesmerized. I went over to my piano and began improvising with it. Amazingly, the whale was perfectly pitched with my well-tempered instrument, and I immediately found harmonies that worked beautifully (thus making it a whale-tempered piece!). The only audio editing I needed to do was to use filters and equalization to "clean up" the sound of the audio file, so that the blanket of low-humming water noises picked up by the hydrophones that recorded the animal, didn't overpower the higher pitch of the song itself.

TNW:  Are you planning on incorporating nature motifs into any later pieces?

AS:  Absolutely! I'm often recording the sounds around me-- from nature, and even from my travels through and across nature, such as last week when I was on the ferry from Friday Harbor to Anacortes, on Fidalgo Island, and used my iPhone to capture a hypnotic rhythmic passage created by the boat engine that I'll use in an upcoming work. And one of my upcoming 2014 symphonic wind band commissions will be centered around recording the sounds of the state of Wyoming, and using them in the digital audio track I create to accompany the band. The possibilities are endless, and inspiring.

TNW: Where did you get the idea to do a piece about Wyoming? Have you already come up with the ideas for the sounds you are going to use?

AS: The piece is an upcoming commission for wind band and prerecorded electronics, commissioned in part by a grant from The Biodiversity Institute, a division of the Haub School of Environment and Natural Resources at the University of Wyoming, to be premiered by conductor Bob Belser and the University of Wyoming Symphonic Band, that will entail me returning to Wyoming to capture the sonic essence of the environment. U of Wyoming gave a beautiful performance of IMMERSION last year (the piece that includes BENEATH, with the whale), and and you can imagine, this new piece is a perfect fit for me!

And again, anyone curious can hear excerpts from both versions of the music: the original solo piece for contrabass flute and prerecorded electronics, BELOW:

http://www.alexshapiro.org/Belowpg1.html

And the version I later created, using the exact same track, for symphonic wind band, titled BENEATH:

http://www.alexshapiro.org/Immersionpg1.html

I would like to take this opportunity to thank Ms. Shapiro for taking the time out of her busy schedule to chat with me!  Hopefully we can ask a few more questions for her once her Wyoming piece is released!  I feel as if I speak for all of us when I say we look forward to hearing more from her in the future, both blog-wise and music-wise!

Wednesday, April 10, 2013

My Hearing's Alright (to the tune of "Feelin' Alright")

The most recent song: presenting "My Hearing's Alright," to the tune of "Feelin' Alright" by Joe Cocker.  Pretty sure that this is the only song ever to work the primitive bat Onychonycteris in!  Below is the link to the song:




Here are the lyrics to the song:


Seems I've got to have the best hearing
Cuz under a few feet of snow I hear lemmings
My hearing's just as good as a dolphin
Random clicks and whistles or so it seems
To them its sounds as loud as a scream
But they're using echolocation to help them see

My hearing's alright, (uh oh)
My hearing's quite good myself (uh oh) (x2)

There's no use in, tryin' to go and hide
Above your heads I'm way up high
Using echolocation while I'm above to help myself while flyin'
Suddenly under an attack, bugs just don't know why
Eating mosquitoes and their allies
Other bats drink blood I can't deny

My hearing's alright, (uh oh)
My hearing's quite good myself (uh oh) (x2)

52.5 million years from today
A bat named Onychonycteris lived, that's hard to say
Researchers say that this bat could fly but not echolocate
So these bats probably flew during the day
'Til something came along to take their place
The birds had come at last: to the night they chased

My hearing's alright, (uh oh)
My hearing's quite good myself (uh oh) (x2)





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


Wednesday, September 19, 2012

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.

Wednesday, August 22, 2012

The Sounds of Star Wars

The dog that was once owned by George Lucas has gone down in history in more ways than one.  One very famous example stems from the dogs name: Indiana.  This inspired the first name of the swashbuckling adventure hero "Indiana Jones" from the film franchise of the same name.  Another very important legacy of Indiana (the dog) stems more from appearance.  Apparently, the idea for Chewbacca, the lovable Wookiee from the Star Wars franchise, came to Lucas when he saw Indiana sitting up in the passenger seat of Lucas's own car!  In fact, the name "Chewbacca" apparently is derived from the Russian and Ukrainian word "собака," which means dog.

Ben Burtt, the sound editor for all six Star Wars movies, recorded a number of bear sounds for the purpose of creating Chewbacca's speech.  Along with bears, cats such as the lion and the mountain lion were also recorded.  Camels were used in addition to these fiercer companions.  These were by no means the only contributions by the animal world to the sounds of Star Wars, however!  For example, when it came to the patrons in the Mos Eisley Cantina in Episode IV: A New Hope, many different tactics were utilized.  Synthesized Latin and chopped-up Swahili served for two of the customers, but animals were used as well.  One patron's laughter stemmed from a hippopotamus, while anothers came from a spring peeper tree frog.

That's not all when it comes to the Cantina scene, however!  Ponda Baba was the Aqualish alien, below, who, along with his friend Dr. Evazan, picked a fight with Luke Skywalker and Ben Kenobi.  He was "voiced" by a walrus.  Meanwhile, besides "dogs growling and bats squeaking," the "laughter" of hyenas was also used for the laughter of some of the Cantina's other patrons. 


Here are some more sounds, and what kind of animals contributed to their creation:

Geonosians:  Here is what Matthew Wood, the actor who brought the voice of the famous and much-loved General Grievous to life, has to say regarding the sounds made by the Geonosians:

"I recorded the mating calls of penguins as they came back from the Antarctic to little Phillip Island in Melbourne.  Other sounds came from when I was up in the rain forest; I was in a flying fox area, and they let me get close to these two flying foxes.  One of them had a banana, but the other one wanted some of it, so they started fighting.  They were really mad, and I recorded that whole thing.  So, for the Geonosians, Ben [Burtt] combined mating penguins and fruit bats fighting over a banana."

The penguins that he is referring to are the korora, commonly called the little blue penguins, discussed in a recent post.  They would also not have been returning "from the Antarctic," as these birds, the smallest known penguin, past or present, are not cold-weather birds, and really stick pretty close to Australia.

Boga:  One of my absolute favorite characters (yes, I know, technically she is just an animal, but still) was voiced by a combination of one of my favorite REAL animals, the Tasmanian devil, along with a few yelps from dogs and coyotes.

Wampa scream: An elephant bellow, overlied by the squawk of a sea lion.

Mynocks:  The whinny of a horse played backwards at half the normal speed, beginning with the bark of a seal.

Ugnaughts:  The noises made by these pig-like aliens were primarily from the pups of an arctic fox, as well as the mother, but a bit of "raccoons in a bathtub" was mixed in.

Rancor Noises:  The dachshund owned by the neighbors of Ben Burtt, the Syllas, barking, growling, and hissing.

The Sando Aqua Monster:  The deep growls that this massive creature from Episode I: The Phantom Menace makes were actually from the throat of Burtt's then-three month old daughter, named Emma.  "At one point, she had a growl in her voice when she was crying.  I thought, I can use this!  So I recorded that and then lowered the pitch way down in the computer."

 Kaadu:  The snorts of the kaadu were recorded from the sounds a whale made out of its blowhole when surfacing at San Diego's Marine World.

Kaadu/Gamorrean Guard:  Both of these creatures (the grunts of the kaadu, and everything for the Gamorrean Guard) were recorded from pigs.  Unsurprising, at least for the Gamorrean, given his appearance!

Poggle the Lesser - The leader of the geonosians (that is, until Queen Karina the Great is revealed in season two of the Clone Wars) was voiced in a number of different ways, but partially through "Swahili-type vocal clicks."

Acklay:  This creatures noises and shrieks were created from reworked dolphin noises, as well as a few pig sounds.

Octuparra Droids:  The sounds from these massive droids from the Clone Wars were partially created by cows.

Gor:  Pet of the aforementioned General Grievous, Gor was voiced by a mixture of a lion and a vulture.

Gundark:  This creature, first mentioned in the original trilogy ("You look strong enough to pull the ears off a gundark," said Han Solo to Luke Skywalker after his traumatic ordeal at the hands [haha irony (because the wampa gets his hands cut off)] of the wampa) was created from a conglomerate of a horse and a shrieking parrot.

I have to say, I think one of the coolest places to visit would be Skywalker Sound, the place where all of the sound and stuff for the Star Wars movies and tons of other movies are made, organized, edited, and such.  If they gave tours, then I would totally make the trip out there!  To take a tour of Skywalker Ranch would be absolutely fantastic!

Wednesday, August 8, 2012

Top Ten: Extinct Sea Monsters (Part 2 of 5)

So why did I split this post up into five parts?  Well, originally it was all just one big post, but it was simply too big, like so often happens.  So I will just post the rest of the parts throughout the next few days.  So here is part number two!
3.  Liopleurodon - A member of the short-necked Plesiosaurs, or Pliosaurs, Liopleurodon was the top predator of the Middle and Late Jurassic shallow seas that covered Europe at that time.  Fossils of Liopleurodon have been found in England, France, Germany, and Russia. 


4.  Shonisaurus - Shonisaurus is a fascinating example of convergent evolution.  When similar environmental and ecological pressures went to work on the ancestors of Shonisaurus, and the rest of the ichthyosaurs, as well as the ancestors of the dolphins and porpoises, they produced very similar results in very different kind of animals.  Shonisaurus and the rest of the ichthyosaurs are marine reptiles, while the dolphins and porpoises are both mammals.  Shonisaurus lived during the Late Triassic Period, right around when the dinosaurs were first making their debut.  At least thirty-seven skeletons of this giant have been discovered in Nevada. In fact, Nevada is still a fantastic place to see some of these creatures, especially Berlin Ichthyosaur State Park in Berlin, a few hours outside of Reno (pictured below)!  This is where the first bones belonging to Shonisaurus were actually discovered!  Definitely high on the list of places that I want to go!



Coming Up:
5.  Elasmosaurus
6.  Dunkleosteus
7.  Archelon
8.  Leedsichthys
9.  Tanystropheus
10. Tylosaurus

This post is part of the "Top Ten: Extinct Sea Monsters" series.  For the rest of the posts in this series, click HERE.  

Thursday, August 2, 2012

The Fauna of South Carolina: Cetaceans

This post was originally going to be a part of today's earlier post, previously entitled "The Fauna of South Carolina:  Cetaceans, Foxes and Otters."  However, when I tried to upload all of the pictures of the cetaceans, foxes and otters, the computer slowed to a crawl.  So I decided just to split the post into two parts, and just pretend like it was one.  So without further ado, I present to you...."The Fauna of South Carolina:  Cetaceans."
Bottlenose Dolphins at "The Inlet"
If you recall, a few weeks ago I posted about another fascinating creature that I learned about when we visited South Carolina in June, called THE BLACK SKIMMER.  We saw it hunting while we were in a small coastal inlet, which we shall henceforth refer to as "The Inlet."  Our main purpose for our visit to "The Inlet" was to see dolphins.  We had seen them last time we had gone to South Carolina at the same place, and we lucked out again.  We saw a group of at least three, but possibly four bottlenose dolphins swimming through the area.  My mom was able to snap a couple of pictures, but it was very difficult to predict where they would next surface.
Dolphin going under.  What you see in the picture is its tail.
 Although all four of these pictures of the dolphins were taken at "The Inlet," we saw dolphins a couple of other times as well; I believe I saw them on four other occasions, all while out on our friends boat.
Dolphin dorsal fin, the same fin that strikes fear into people who have seen Jaws too many times.
By far the most memorable occasion was out in Charleston Harbor.  We were just on our way back from buzzing around Fort Sumter (the starting point of the Civil War).  We had been (boating?  driving?  floating?) for a few minutes when Captain Jim stopped the boat: he had spotted dolphins.  A pod of dolphins was swimming around our boat.  None of them got closer than twenty-five or so feet, but that was still pretty close!  We knocked on the side of the boat to try to draw them closer, as dolphins are very curious, like the polar bear, but nothing doing.  They stayed nearby our boat for awhile, and they didn't seem to be hunting or anything, so my guess is that they were probably curious, but a little nervous about getting too close.  Or perhaps they were getting close, and we just couldn't see them under the water!  Or, perhaps they were just, as today's urban youth says, "Chillin'." 
Another shot of the dolphin dorsal fin
Later on, we went to an excellent restaurant called "The Crab Shack" (scroll down to the "Alligator" part of the post), and they had a small display of local fossils.  I took a picture of a few of the more interesting ones, seen below.
Dolphin vertebrae
A whale bone

These large bones help the whales to "see" via echolocation at the deeper, darker levels of the ocean, where seeing with your eyes is virtually impossible without massive eyes, like those seen in the giant squid.
On our last two nights of our vacation, we stayed at a little place called Tybee Island, near Savannah, Georgia.  On one of those days, we joined a local ecologist named Dr. Joe Richardson on an ecology tour.  It was a lot of fun, and I hope to devote a post to him and his tour later on.  Also on the island was a small museum, called the "Tybee Island Marine Science Center" (TIMSC), which was also very cool.  I know for a fact that I will have at least one post later on about an amusing incident that took place at the center, and probably mention it in passing a few times as well.  But for now, all you need to know is that they had a few bones of a sperm whale that had washed up on the beach there a few years back, I think perhaps in 2002.  Take a look below!
Sperm whale bone, I don't remember what bone this was.  If anyone has any idea, shoot me an email! 
Sperm whale ribs
Sperm whale vertebrae
Finally, on our last night there, we stopped at a small shop.  I had gone down to South Carolina in the hopes of nabbing a Megalodon tooth or two (I know you're tired of hearing this, but a later post!) but I had been foiled.  I did find a couple of really cool fossils, including other sharks teeth, a few fossils belonging to stingrays, as well as a fossilized horse molar!  A lot of what I have is unidentified at this point, but I will keep you posted as I find out more.  But I decided to buy two whale bones at this fossil shop, and below are two pictures.  The Rupee is there for comparison.
Fossil whale vertebrae

Fossil whale bone, I believe it to be a jawbone.
This post is part of "The Fauna of South Carolina" series.  For the rest of the posts in this series, click HERE.

Wednesday, July 18, 2012

What Is It? The Weekly Challenge #2 Answer

 Hello again!  Thank you to our guessers for this week: surprisingly, one of you got it exactly right!  Congratulations to Kristie C., who guessed this weeks mystery animal 100% correct!  The correct animal was Pakicetus, an ancient ancestor of the cetaceans, or the whales, dolphins and porpoises.  Around 53 MYA, Pakicetus lived in a world that was gradually becoming what we see today.  At this time, what we now know as India was its own special island continent, moving steadily northwards until, eventually, India crashed into Asia.  This crash resulted in the largest mountains we have today, the Himalayas

However, 53 MYA, during the Eocene Epoch, India hadn't quite reached Asia, a small sea separating the two, the remains of the vast Tethys Ocean.  The Tethys Sea was high in saline, which is incredibly good for life.  Microscopic organisms like plankton flourished, sending reverberations up the food chain, all of the way to the fish, which exploded in numbers as well.  And on the shore of this Tethys Sea, in what today is Pakistan, stood Pakicetus

As Pakicetus watched the gread abundnace of fish in the waters, he began to take short fishing trips into the water.  Over millennia, as Pakicetus took more and more fishing trips, of longer and longer duration, adaptations that proved beneficial for hunting fish in the water occurred, like a more streamlined shape, most likely webbed feet, and nostrils placed further back on the head.  Over a few million years, Pakicetus evolved into another ancient whale, called Ambulocetus.

Check back in a few hours for your next "What Is It?" challenge?  I promise you, after the last two, this one should seem like a piece of cake!  See you all then!
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