Cats recognise the voice of their owner, but never evolved to care.
22
When cats are happy, they may squeeze their eyes shut.
10
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
The colossal squid has the largest eyes in the world.
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
Dogs sometimes fake being sick to get attention.
26
Gorillas can catch human colds and other illnesses.
205