Rattlesnake mating sessions have been known to last more than 22 hours.
232
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Cows can sleep standing up, but they can only dream lying down.
745
Giant Anteaters' front legs look like a panda.
48
Tigers can see 6 times better at night than humans.
305
The colossal squid has the largest eyes in the world.
4