The bumps we get from mosquito bites are actually caused by an allergy to mosquito saliva.

Your vision improves when you are afraid.

In space, you will become taller.

A blue whale's heart is about the size of this car.

Clowns and acrophobia are two of the most common fears.

When riding an elevator downwards, a person's weight appears lighter.

Diamonds are not as rare as you might think.

The amount of gas you fart every day is equivalent to the amount of gas needed to fill a balloon.

Your eye muscles move up to 100,000 times a day.

Japan experiences approximately 1,500 earthquakes every year.

Two ounces of gold would be enough to completely cover this billboard.

Actually, the new hair you grow every day adds up to a whopping 36 meters long. (You'd have to shave your head to find out!)

You unknowingly swallow up to 430 worms every year.

Lightning can strike 100 times per second.

Mosquitoes are most attracted to blue. (So don't buy blue clothes to wear, they attract mosquitoes.)

The squirrel unintentionally planted millions of trees. (This little guy has a habit of burying the pine cones he finds, but it seems to have a terrible memory, so he often forgets where he buried them, and the forgotten pine cones slowly grow into trees.)

Cat urine will shine under ultraviolet light.

Beavers eat nearly 200 trees every year.

Tigers can also use litter boxes.

Hydrofluoric acid can dissolve glass.

Tapeworms, which parasitize humans, can grow up to 22.9 meters long! (This...this...)

If you peeled off all your skin and laid it flat, it would cover almost 2 square meters. (A human skin carpet? This must be a horror movie!)

The amount of carbon in the human body is enough to make 9,000 pencils. (But what's the use? You can't make pencils that way.)

You unknowingly swallow more than a liter of snot every day!

A giraffe's tongue can lick itself through its own ear.

Octopuses possess noble (blue) lineage.

Squirrels use kisses to verify their identity.

Bear droppings are square so they don't roll away.

Hippos use their own sweat as sunscreen.