Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
Whales and dolphins can't taste anything other than salt.
11
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
The seahorse is the only fish to have a neck.
12
Bats sleep 18-20 hours per day.
5