The Basenji dog is the only dog that is not able to bark.
4
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
59
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Gorillas can catch human colds and other illnesses.
205
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2