Polar bears have many interesting adaptations. One important one is the fact that they have hollow fur. This space in the fur traps air keeping the bear buoyant when swimming. Additionally, the layer of air gives the bear insulation from the frigid temperatures of the Arctic air.
Sources
Image: http://ecobubamarica.files.wordpress.com/2010/10/polar_bear_2004-11-15.jpg 
No comments:
Post a Comment