The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
There's a rare breed of pig that looks like a sheep.
14
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
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
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9