Jellyfish as a species are actually older than dinosaurs and sharks.
383
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
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Denmark has twice as many pigs as there are people.
66