Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
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 octopus does not have a blind spot.
273
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23