Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
The most expensive cow in the world was sold in 2009 for $1.2 million.
-3
A 42-foot sperm whale has about 7 tons of oil in it.
209