Every hour the Universe expands by a billion miles in all directions.

The world's smallest winged insect, the Tanzanian parasitic wasp, is smaller than the eye of a housefly.

Microbial life can survive on the cooling rods of a nuclear reactor.

Light would take 0.13 seconds to travel around the Earth.

The Earth spins at 1,000 mph but it travels through space at an incredible 67,000 mph.

An individual blood cell takes about 60 seconds to make a complete circuit of the body.

The African Elephant gestates for 22 months.

The call of the humpback whale is louder than Concorde and can be heard from 500 miles away.