How do animals survive in their habitat?

I put my hand in ice water and used a thermometer to see how cold it was.  It was freezing!  Then I wrapped the blubber bag around my hand and put it in the ice water.  My hand was not freezing!  COOL!

http://greengatepreschool.blogspot.com/2011_01_01_archive.html

Whales stay warm because of their blubber.  I don’t have blubber. I use a coat to stay warm outside.

                     Standard  2. L.5A.2 What are some special animal body parts that help them survive?