The Animal That Smells Like a Movie Theater....

I've mostly written about animals that are fairly common and well known, but I think it is time to branch out into some more exotic and unknown animals.  So today kicks off a month of unusual animals posts.  First off is an animal that I first saw at the San Diego Zoo.  My dad was an analytical chemist for CREST, the science portion of the zoo.  It was his job to pick me up from school every Monday when my mom was too busy.  This gave me the luxury of going back to work with him at the zoo every Monday.  As you can imagine I got lots of behind the scenes tours and saw far more of the zoo than the average person.  One of my favorite animals that wasn't a main attraction was the Binturong. 

When you hear the name Binturong, the thought springs to mind is likely what the heck kind of animal is that?  It is a medium sized brown critter that looks like a fox, raccoon, cat, and maybe a little dog all mixed together  It is actually part of the Viverridae family which includes civets and genets, which resemble cats crossed with weasels.  The most striking feature of this animal has nothing to do with it's looks but actually it's smell.  A Binturong smells like fresh buttered popcorn!  Binturongs use their scent markings to signal when they are ready to mate.  Since they live solitarily, scent markings are needed to bring animals together for those romantic times of year.

Binturongs are one of the few animals that can use delayed implantation or embryonic diapause.  This is when a female can mate and delay the embryo from implanting until conditions are better.  They cannot delay implantation for long term, but a few weeks can mean the difference between starving and surviving to a Binturong.

Binturongs live in the trees and have hands evolved to live in a tree lifestyle.  Their paws have claws that are perfect grapsers on tree limbs.
Hope you enjoyed being introduced to a fun creature, next weeks post will be about another unusual animal.
Cass

New Year New Bunny



 So New Years is all about having a great party and welcoming the new year with hopes it will be better than the last.  Well I know 2012 is going to be a great year for me because I got a new bunny!  Her name is Opal, and she is a blue Flemish Giant.  While this isn't the largest breed of rabbit, she is a very big girl, and should grow up to be well over 20 lbs.  In today's post we will talk about some science but I'm also a history fan so I'm going to change things up and talk about how giant breeds (in this case rabbits) came to America.

  

Opal at 8 weeks old



In the 1800's rabbits were raised and used for meat very commonly throughout Europe.  This was mainly due to the fact that large livestock was expensive to feed, house and had slow breeding rates.  Rabbits have limited need for space and very fast reproductive rates. Being an island, England consumed large amouts of rabbits, and soon turned to importing them to keep up with demand.  Commonly bred rabbits were mid sized around 7 to 8 lbs.  Travelers returned to England with wild tales of rabbits three times the size in Flanders.  Thus around 1860 Flemish Giants were imported to England, then imported to the Americas in 1890 during a similar "rabbit boom".  So now that we know how Flemish Giants got here lets get down to some science!

  

Opal at 10 weeks old



Probably the most distinguishable features of rabbits are their giant ears.  Most people know their ears act like giant dishes to catch sound waves.  But their ears are also one of their main temperature control (i.e. thermoregulation) devices.  When looking at the rabbits ears you will see many blood vessels.  If a rabbit is cold the simply need to go out into the sun or fold their ears close to their furry bodies, the ears blood vessels go through vasoconstriction or become smaller to retain heat.  If a rabbit is hot they can go into the shade and fan out their ears, where their blood vessels go through vasodilation.

Thanks for reading and Happy New Year,

Cass (and Opal as the Jackalope)

Reindeer Games

Well it is the beginning of December so time for a holiday post.  Today's featured animal will be the Reindeer also known as the Caribou.  I thought it would be fun to outline some points that would make Reindeer a great animal to pull Santa's sleigh.  They live in both Tundra and Borreal Forrest areas, both of which are very cold.  Reindeer fur has an undercoat and topcoat to help combat the extreme cold.  The undercoat is dense and wooley, while the top coat is longer with hollow air-filled hairs. 
Only the most impressive animal will do for Santa, and a reindeer's antlers certainly look fancy.  Both the males and females grow antlers but the males grow them noticeably larger.  The age of the deer determines when their antlers fall off.  The older males loose them in December the younger males loose them in spring.  Reindeer antlers are the largest compared to their body size.

Something you may not realize about Reindeer is they have a very special nose.  No, it doesn't glow red like Rudolf's.  They have nasal turbine bones that increase the surface area dramatically. This allows incoming air to be warmed by the deer's body heat before being transported to the lungs.  The moisture is also captured from the wet cold air before the warmed air is expired.  The moisture can be used to moisten dry air or even be reabsorbed back into the body via capillaries.

Why were Reindeer chosen to pull Santa's sleigh?  Well, I think it is because they are the only mammal to see ultraviolet light!  They can see wavelengths at around 320 nm much better than humans who tap out at 400 nm.  This is likely because Reindeer live in the Arctic where the world is often covered in snow and relatively monotoned.  Seeing ultraviolet helps certain objects stand out. 

Now that you see the many features of Reindeer you can see why Santa loves them. 

Happy Holidays to everyone,
Cass

Are Humans Good or Bad?

Most of the time I post about animals and science, but some pretty serious topics have been on my mind lately.  I have asked a few of my close friends if they think humans are born good, bad, or neutral?  It has been proven time and time again, a child's upbringing has a huge influence on their future and behavior.  The route of my question goes back to the time honored question of nature vs. nurture.  Can people overcome a bad upbringing to do good things?  Can good people throw away every opportunity to do great evil? 

Personally I believe people have the propensity to do both good and bad.  Good people choose to do bad things at time, and sometimes a bad person does something kind and altruistic.  At heart I'm a optimist, I think people have an ingrained desire to do good.  People often think they are doing the right thing but society has judged it as wrong.  Misunderstandigns are all about perspective.  I try very hard in my personal life to be self accountable, I don't hold myself to any standard but the one set by myself.  In that sense I don't believe it is my place to judge others as right or wrong.  (I would make a terrible judge or lawyer, my journey to be a biologist is looking better and better everyday.)  I'm really shocked at the daily amount of judging others do to each other, it seems everyone spends so much time trying to control one another that they have lost control over themselves.  If we all took it upon ourselves to look within and just do good things because it is the right thing to do, life would dramatically improve.  Today's world is littered with ridiculous lawsuits, cut-throat businesses,  people acting plain mean.  Life is hard, we can't always go around with fake smile plastered on our faces, but it is an active choice to wake-up everyday.  It is also a conscious choice to be a good person who does the right thing just because. 

What are your thoughts on human nature?  What kind of person do you consider yourself?
Animal posts will return soon, don't worry.
Cass