Sound pressure is the variable overpressure that occurs in an elastic medium when a sound wave passes through it.

Grasp reflex of a newborn

Just a picture of Justin Trudeau's mothers gaping vagina

North Dakota buried under snow, 1966

The United States accidentally dropped a nuke in North Carolina and it was found hanging on a tree, luckily not detonated.

The same room, same angle, 100 years apart. Titanic.

Male dromedary camels has an organ called a dulla in its throat, a large, inflatable sac he extrudes from his mouth when in rut to assert dominance and attract females.

This Ground to Cloud lightning (sometimes called Upward Moving lightning) in Australia

You may not see the mountain lion, but the mountain lion sees you

Ingrown hair removal.

The sex of the future turtle depends on the temperature at which the egg was kept: at lower levels, the embryos develop into males, and at higher levels - into females.

Gold is such a rare metal that in one hour more iron is found in the world than gold has been found in the entire history.

300 sperm to fertilize an egg

Roughly 300 sperm dissolve the shell of the egg, but only one falls inside. And if it is defective, the pregnancy won’t develop.

Sherman crab used to detonating land mines in WWII.

Charlie Chaplin at the age of 27, 1916.