Spiders have transparent blood.
56
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
Roosters can't crow if they can't fully extend their necks.
28
A pig's orgasm lasts for 30 minutes.
303
It was discovered on a space mission that a frog can throw up.
52
Bats always turn left when exiting a cave.
40
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
A crocodile cannot stick out its tongue.
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