Squirrels forget where they hide about half of their nuts.
698
A domestic cat can sprint at about 31 miles per hour.
274
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
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Female kangaroos have three vaginas.
2
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
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79