Gorillas can catch human colds and other illnesses.
205
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
Drivers kill more deer than hunters do.
660
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6