Men can read smaller print than women; women can hear better. See more

As much as 80% of microwaves from mobile phones are absorbed by your head! See more

The average person falls asleep in seven minutes. See more

Mexico City sinks about 10 inches a year. See more

Thomas Edison designed a helicopter that would work with gunpowder. It ended up blowing up and also blew up his factory. See more

A typical bed usually houses over 6 billion dust mites. See more

There are more bacteria in your mouth than the human population of the U.S.A. and Canada combined. See more

In 10 minutes, a hurricane releases more energy than all of the world's nuclear weapons combined. See more

Blood is about 78 percent water. See more

It took approximately 2.5 million blocks to build the Pyramid of Giza, which is one of the Great Pyramids. See more

Every single possible 3-character .com domain (over 50,000) has long since been registered! See more

A day on the planet Mercury is twice as long as its year. See more

All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee. See more

Most marine fish can survive in a tank filled with human blood. See more

Your system of blood vessels is over 60,000 miles long. That's long enough to go around the world more than twice! See more

The Netherlands has built 800 miles of massive dikes and sea walls to hold back the sea. See more