Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
A lion in the wild usually makes no more than twenty kills a year.
186
In order to enhance the taste, Japanese macaque wash their food in salt water before they eat. They also make snowballs for fun!
7
The oldest recorded elephant lived for 82 years.
213
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
There's a rare breed of pig that looks like a sheep.
14