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
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
The reindeer is the only mammal that can see UV light.
17
Dogs sometimes fake being sick to get attention.
26
When you shave a guinea pig it looks like a little hippo.
19
The seahorse is the only fish to have a neck.
12