Cool Human Facts

The smile is the most frequently used facial expression. A smile can use anywhere from a pair of 5 to 53 facial muscles.

The slowest growing finger nail is on the thumb nail and the fastest growing is the finger nail on the middle finger.

The sensitivity of a woman's middle finger is reduced during menstruation.

The same amount of calories are burned by doing 6 sessions that are 5 minutes each of an activity and doing 1 session of that activity for 30 minutes.

The pectin that is found in apples aids in lowering cholesterol levels.

The most frequent season for most suicides to occur is in the spring. The winter months have the lowest number of suicides.

The majority of American models are skinnier than 98% of American women.

The longest hiccups on record was by an American pig farmer whose hiccups persisted from 1922 to 1987.

The longer white infants from low-income families are breast-fed, the less likely they will be overweight as young children, researchers said on Monday.

The length of a human esophagus is 25 centimeters.

The human liver performs over 500 functions.

The feet have approximately 250,000 sweat glands.

The eight most popular foods to cause food allergies are: milk, eggs, wheat, peanuts, soy, tree nuts, fish, and shellfish.

The early occurrence of a fetus yawning is at eleven weeks after conception.

The average ear grows 0.01 inches in length every year.

Cool Animal Facts

The chameleon has a tongue that is 1.5 times the length of its body!

Squirrels can't remember where they hide half of their nuts.

Only male crickets can chirp.

A rabbit's teeth never stop growing.

Alligators cannot move backwards.

Texas horned toads can shoot blood out of the corners of their eyes.

The faster kangaroos hop, the less energy they use.

An okapi's tongue can grow to be 17 inches long.
An owl's eyes are bigger than its brain.

Salamanders breath through their skin.

The guanaco of South America, a cousin of the camel, has pads on its feet to keep its feet from burning on desert sand or freezing in mountain snow.

Foxes sometimes nip at the heals of cattle so the stomping of the cattle makes mice and other rodents come out of the ground, for the fox to eat.

Salamanders are known to come out of wood when it was burning inside a fireplace, this is because Salamanders hibernate in wood.

Whether an alligator is a male or female is determined by the temperature of the nest where the egg is hatched – 90 to 93 degrees will make it a male; 82 to 86 degrees will turn it into a female.

Some animals produce their own lights, called bioluminescence. The Brazilian railroad worm has a red light on its head and green lights down its side. All it needs to drive on the street is a turn signal.

You may have heard someone say, "It’s raining cats and dogs." There have been actual documented cases from all over the world of fish, frogs, dead birds, snakes, snails, beetles, worms and jellyfish raining down from the sky in great numbers, but no reports of showers of cats or dogs.