When cats are happy, they may squeeze their eyes shut.
10
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
Mosquitoes don't just bite you, they also pee on you.
11
A group of kittens is called a "kindle".
10
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
There's a rare breed of pig that looks like a sheep.
14
Early American humans hunted car-size armadillos and used their shells for houses.
12