The reindeer is the only mammal that can see UV light.
17
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
Whales and dolphins can't taste anything other than salt.
11
If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
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
Squirrels forget where they hide about half of their nuts.
698
In order to enhance the taste, Japanese macaque wash their food in salt water before they eat. They also make snowballs for fun!
7