Humans are the only animals to produce emotional tears.

The penguin is the only bird who can swim, but not fly.

Abraham Lincoln’s dog, Fido, was assassinated too.

The leg bones of a bat are so thin that no bat can walk.

The hummingbird is the only bird that can fly backwards.

A mole can dig a tunnel 300 feet long in just one night.

In the Caribbean there are oysters that can climb trees.

Squirrels forget about 50% of the nuts they have hidden.

An elephant weigh less than a blue whale’s tongue.

It is possible to lead a cow upstairs but not downstairs.

Koi fish can live for centuries. One lived for 226 years.

Pigs are the fourth most intelligent animal in the world.

An elephant’ trunk has no bones, but 40,000 muscles.

Mosquitoes can fly through rain drops without getting hit.

Owls are one of the only birds who can see the color blue.