An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
When you shave a guinea pig it looks like a little hippo.
19
Dogs have been man's pet for over 14,000 years.
224
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
Gorillas can catch human colds and other illnesses.
205