In one minute, the heart of a giraffe can pump 160 gallons of blood.

Female leopards give birth to a little of two or three cubs at a time. By the time a cub is two years old it will leave the company of its mother and live on their own.

In 1693, the postage rate of a letter was determined by how much light went through the letter. The less the light went through the letter the more expensive the rate would be. This technique was referred to as candling.

AMAZING FACTS