Sheep, goats, octopuses, and toads have rectangular pupils.
7
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
Bats sleep 18-20 hours per day.
5
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
Condoms were originally made of animal intestines or linen.
347
Alligators can live up to 100 years.
337