A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
The colossal squid has the largest eyes in the world.
4
A giraffe's kick is so powerful that it can decapitate a lion.
216
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
There's a rare breed of pig that looks like a sheep.
14
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6