The Platypus used to be considered a myth like Bigfoot and the Yeti.
18
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
Only 3% of bird species have penises.
0
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
There's a rare breed of pig that looks like a sheep.
14