Males produce one thousand sperm cells each second - 86 million each day.

The low frequency call of the humpback whale is the loudest noise made by a living creature.

Our oldest radio broadcasts of the 1930s have already travelled past 100,000 stars.

The speed of light is generally rounded down to 186,000 miles per second. In exact terms it is 299,792,458 m/s (metres per second – that is equal to 186,287.49 miles per second).

The Universe contains over 100 billion galaxies.

Female black widow spiders eat their males after mating.

A typical hurricane produces the nergy equivalent to 8,000 one megaton bombs.

When Krakatoa erupted in 1883, its force was so great it could be heard 4,800 kilometres away in Australia.