Koala Bears are not bears.
34
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
A cat's jaws cannot move sideways.
194
The flea can jump 350 times its body length, that is like a human jumping the length of a football field.
32
The Basenji dog is the only dog that is not able to bark.
4
Porcupines float in water!
69