Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
Rattlesnake mating sessions have been known to last more than 22 hours.
232
Cats and dogs can hear ultrasound.
350
A lion in the wild usually makes no more than twenty kills a year.
186
Dolphins have names for one another.
18