Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17
The elephant brain weighs about 6,000g.
274
A cow produces around 200,000 glasses of milk in her lifetime.
373
Dolphins have names for one another.
18
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79