Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
Female kangaroos have three vaginas.
2
There's a rare breed of pig that looks like a sheep.
14