Cats recognise the voice of their owner, but never evolved to care.
22
Sharks, like other fish, have their reproductive organs in their chests.
248
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
The largest earthworm on record was found in South Africa and measured 22 feet.
151
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
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57