An alligator can go through 2,000 to 3,000 teeth in a lifetime.
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Sharks, like other fish, have their reproductive organs in their chests.
248
Whales and dolphins can't taste anything other than salt.
11
A tortoise named Adwaita lived to 255 years old. To put it into perspective, he was born before the United States of America existed and his death was announced on CNN (1750-2006).
12
The Basenji dog is the only dog that is not able to bark.
4
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