Polar bears have 42 teeth
Your heart is around the same size as a clenched fist.
The sun only rises in the North Pole once a year.
Ostriches eyes are bigger than their brains.
Tug-of-war was an Olympic sport from 1900 to 1920.
All dinosaurs were reptiles.
Potatoes were the first food to be grown in space.
Raspberries are a member of the rose family.
If you sneeze too hard, you could fracture a rib.
Rubber bands last longer when refrigerated
A cat has 32 muscles in each ear.
Tigers have striped skin, not just striped fur.
There are 293 ways to make change for a dollar.
A crocodile cannot stick its tongue out.
Koalas have fingerprints
Sally Ride was the first American woman to fly in space, on June 18, 1983.
