Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
Squirrels forget where they hide about half of their nuts.
698
The oldest recorded elephant lived for 82 years.
213
A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13