Denmark has twice as many pigs as there are people.
66
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
Sharks have been on the planet longer than trees.
14
Dolphins have names for one another.
18
The elephant brain weighs about 6,000g.
274
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2