Sharks have been on the planet longer than trees.
14
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
The reindeer is the only mammal that can see UV light.
17
Bats sleep 18-20 hours per day.
5
When a male honey bee climaxes during sex, his testicles explode and then he dies.
27