Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Parrot parents "name" their children with a signature call.
112
In Australia, there are spiders big enough to eat snakes.
20
A cow produces around 200,000 glasses of milk in her lifetime.
373
If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
Drivers kill more deer than hunters do.
660
Cats recognise the voice of their owner, but never evolved to care.
22
A tortoise named Adwaita lived to 255 years old. To put it into perspective, he was born before the United States of America existed and his death was announced on CNN (1750-2006).
12