The effect of Relativity made Astronaut Sergei Avdeyev a fraction of a second younger upon his return to Earth after 747 days in space.
A banana is about 75 percent water.
The Philippines consist of 7,100 islands.
Some species of earthworm can have as many as 10 hearts.
A newborn kangaroo is small enough to fit into a teaspoon.
The royal house of Saudi Arabia has close to 10,000 princes and princesses.
A solar panel 100 miles by 100 miles (161x161km) in the Mojave Desert (USA) could replace all the coal now burned to generate electricity in the entire U.S.
The moon orbits the Earth every 27.32 days
Starfish have no brain.
A cat has 32 muscles in each ear.