Without its lining of mucus your stomach would digest itself.

Christian Barnard performed the first heart transplant in 1967 - the patient lived for 18 days.

There are more living organisms on the skin of each human than there are humans on the surface of the earth.

Neutron stars are so dense that a teaspoonful would weigh more than all the people on Earth.

The earliest wine makers lived in Egypt around 2300 BC.

The largest dinosaur ever discovered was Seismosaurus who was over 100 feet long and weighed up to 80 tonnes.

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

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