Octopi change colours when they become frightened. Normally they are a brownish colour, but can change to green or blue when fear sets in.

A pig's orgasm lasts 30 minutes.

A chance of a woman having twins is increased after the age of 35. About 1 in 27 women will give birth to twins after this age. After 50 the chances of having twins is 1 in 9.

AMAZING FACTS