The strongest muscle in proportion to its size in the human body is the tongue.
Every time you lick a stamp, you're consuming 1/10 of a calorie.
The human heart creates enough pressure when it pumps out to the body to squirt blood 30 feet.
Banging your head against a wall uses 150 calories an hour.
Your stomach has to produce a new layer of mucus every two weeks otherwise it will digest itself
Humans are the only primates that don't have pigment in the palms of their hands.
Thirty-five percent of the people who use personal ads for dating are already married.
It's possible to lead a cow upstairs...but not downstairs.
Dogs have four toes on their hind feet, and five on their front feet.
The ant can lift 50 times its own weight, can pull 30 times its own weight and always falls over on its right side when intoxicated.
A cockroach will live nine days without it's head, before it starves to death.
Butterflies taste with their feet.
Elephants are the only mamals that can't jump.
Starfish don't have brains.
Polar bears are left handed.
A duck's quack doesn't echo, and no one knows why.
An ostrich's eye is bigger that it's brain.
The longest recorded flight of a chicken is thirteen seconds.
The fingerprints of koala bears are virtually indistinguishable from those of humans, so much so that they could be confused at a crime scene.
Snails can sleep for 3 years without eating
Porcupines float in water.
Armadillos are the only animal besides humans that can get leprosy.
Many hamsters only blink one eye at a time.
A pregnant goldfish is called a twit.
A male emperor moth can smell a female emperor moth up to 7 miles away.
A giraffe can clean its ears with its 21-inch tongue!
Orcas (killer whales) kill sharks by torpedoing up into to shark's stomach from underneath, causing the shark to explode.
Ten percent of the Russian government's income comes from the sale of vodka.