It was certainly a wild way to raise money – animal lovers flashed for cash.

Hundreds of fundraisers earned their stripes by running naked around a zoo to raise money for a rare subspecies of tiger.

The sponsored streak saw 300 brave runners get back to nature by stripping off to make their way through ZSL London Zoo in the after-hours event, watched by their supporters and some rather confused animals.

Wearing nothing more than shoes, tiger masks and tiger ears, they ran a 300m course through the centre of the attraction, with some exhibitionists choosing to complete several laps of the circuit.

Streak for Tigers, named after the collective noun for the animal, raised some £60,000 which will be ploughed into conservation work to protect the Sumatran tigers, of which only 300 remain in the wild.