The average mattress contains 2 million house dust mites.

No other animal gives us more by-products than the pig.

The Australian Emu holds the land speed record for birds at 31 mph.

The average talker sprays about 300 microscopic saliva droplets per minute, about 2.5 droplets per word.

The Earth experiences about 50,000 earthquakes each year.

The lowest temperature ever recorded was 129 degrees below 0 at Vostok, Antarctica, on July 21, 1983.

The largest known kidney stone weighed 2.9 pounds (1.36kg).

The average human produces 25,000 quarts of spit in a lifetime, enough to fill two swimming pools.

It has been calculated that in the last 3,500 years, there has only been 230 years of total peace throughout the civilized world.

Bamboo, which is the tallest grass in the world, can grow up to 90cm in a day.