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
Mosquitoes don't just bite you, they also pee on you.
11
On some poorly researched trivia lists it is stated as a fact that a pregnant goldfish is called a twit. This is not true as goldfish lay eggs.
71
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
A cat can jump FIVE TIMES as high as it is tall!
371
When you shave a guinea pig it looks like a little hippo.
19