Cats sleep for 70% of their lives.
8
Condoms were originally made of animal intestines or linen.
347
When cats are happy, they may squeeze their eyes shut.
10
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Gorillas can catch human colds and other illnesses.
205
When dragonflies mate, their tails form a love heart.
22