Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
The reindeer is the only mammal that can see UV light.
17
A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
The elephant brain weighs about 6,000g.
274