Every year thousands of new oak trees grow in the world just because squirrels cannot remember where they hide their acorns.
Swallows will fly all day in search of insects and sometimes they will fly more than 800 kilometers.
It takes no more than 20 moves to solve the Rubik’s Cube.
During the day a man’s nail grows on average 0.1 millimeters, and for a new one to grow fully it needs approximately three months.
When the Moon is directly above you, your weigh slightly less than usual.
Leonardo da Vinci made the first draft for the contact lenses. They should have been made of thin glass filled with water...
