Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
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
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
When cats are happy, they may squeeze their eyes shut.
10