Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
23
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Female kangaroos have three vaginas.
2
When you shave a guinea pig it looks like a little hippo.
19