Hawaiian Happy Face Spider

This amazing happy-faced spider found in Hawaii is bound to leave you beaming from ear to ear.

The tiny insect, which measures just a few millimetres across, has developed bizarre markings which look just like a smiling face.

Scientists think the spider, which is harmless to humans, has evolved the patterns to confuse predators.

But it's no laughing matter for the spider which is under-threat from extinction from its home in the rainforests of the Hawaiian island chain in the Pacific ocean.

Spider expert and geneticist Dr Geoff Oxford, 62, from the University of York, said studying happy-face spiders was a real joy.