On average, adults laugh fifteen times a day.
Our kidneys have many tubes; if we would merge them, they would form a long thin tube 65 kilometers long.
Honey is the only food that will never spoil.
Famous composer Ludwig van Beethoven (1770-1827), died of a liver failure. The researchers found that by examining the DNA of one of his strands of hair.
Frogs never drink water! They absorb it through their skin.
For a spacecraft to overcome the Earth’s gravity, it needs an average speed of 12 kilometers per second.
