Snakes have one lung. See more

Koala bears have finger prints that are almost identical to ours. See more

Out of 20,000 species of bees, only 4 make honey. See more

A chameleon's tongue is twice the length of its body. See more

During warm weather hippopotamus's secrete sweat that is pink. This substance not only cools them down but also helps fight infections of the skin. See more

The hairs on a polar bear are not white, but clear. They reflect light, so they appear white. See more

Pigs can't sweat because they don't have sweat glands. See more

Cats have over one hundred vocal sounds, dogs only have about ten. See more

The mantis shrimp has an extending claw that can punch a hole through a glass jar. See more