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
Early American humans hunted car-size armadillos and used their shells for houses.
12
Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
2
Macaques monkeys in Japan learned to steal purses and wallets, take out the coins, and use them to buy drinks and snacks from vending machines.
26
Gorillas can catch human colds and other illnesses.
205
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4