The Platypus used to be considered a myth like Bigfoot and the Yeti.
18
When cats are happy, they may squeeze their eyes shut.
10
Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45