Cats and dogs can hear ultrasound.
350
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
Sharks, like other fish, have their reproductive organs in their chests.
248
Lurch, a Watusi bull, had the largest horns in the world.
32