Sloths take two weeks to digest their food.
243
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8
A group of pugs is called a grumble.
10
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
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
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6