The male seahorse carries babies and 'gives birth' to them instead of the female.
7
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
In 1955, the citizens of São Paulo were so upset with their government that they elected a rhinoceros named Cacareco (meaning rubbish) to the city council in protest, with over 100,000 votes.
18
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
Early American humans hunted car-size armadillos and used their shells for houses.
12