Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Sharks, like other fish, have their reproductive organs in their chests.
248
The largest earthworm on record was found in South Africa and measured 22 feet.
151
The most expensive cow in the world was sold in 2009 for $1.2 million.
-3
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40