When glass breaks, the cracks can move at speeds of more than 3,000 miles per hour.
Bananas are actually giant herbs - related to the orchid family.
The life of an eyelash is about 5 months.
The Sun is 330,330 times larger than Earth.
Remarkably, frogs actually use their eyes to help them swallow food. When the frog blinks, its eyeballs are pushed downwards creating a bulge in the roof of its mouth. This bulge squeezes the food inside the frog's mouth down the back of its throat.
A thimbleful of a neutron star would weigh over 100 million tons.
1 and 2 are the only numbers where they are the values of the numbers of factors they have.
The Stegosaurus dinosaur measured up to 30 feet (9.1 meters) long but had a brain the size of a walnut.
The sky is blue because when sunlight collides with our atmosphere, colours of the shortest wavelengths (violet and blue) are scattered - and our eyes are more sensitive to see blue.
Cats have powerful night vision, allowing them to see at light levels six times lower than what a human needs in order to see.