The North Atlantic gets 2.5 centimetres (1in) wider every year.
40 to 50 percent of body heat can be lost through the head (no hat) as a result of its extensive circulatory network.
Elephants are the only land animal that can't jump.
A person would die if all of the toxic ingredients of one cigarette were directly injected into the bloodstream.
The longest living cells in the body are brain cells which can live an entire lifetime.
Uranus is tipped on its side so that one pole is pointed at the Sun, so its poles are warmer than its equator.
Sharks are immune to cancer.
The diameter of a proton is approximately 0.000000000001 mm (1/25,000,000,000,000 inch).
Lake Baikal is the deepest lake in the world.
The average person will swallow 295 times while eating.