It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
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Your body is creating and killing about 2.4 million red blood cells per second.
17
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Pineapples are not a single fruit, but a group of berries that have fused together.
19
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
Gorillas can catch human colds and other illnesses.
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