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

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

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

February 1865 is the only month in recorded history not to have a full moon. See more

Mexico City sinks about 10 inches a year. See more

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

Blood is about 78 percent water. 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

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