A hedgehog's heart beats 300 times a minute on average!
14
The world's largest amphibian is the giant salamander. It can grow up to 5 ft. in length.
66
Turtles can live for more than 100 years.
84
Cattle are the only mammals that pee backwards.
33
Rats can tell the difference between two human languages.
49
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6