Penguins have a gland above their eye that turns saltwater into freshwater.
12
Cats and dogs can hear ultrasound.
350
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6