Winners receive $10 trillion cash prizes, but in worthless Zimbabwean money

A Swede who wrote a trilogy about collecting bugs, an Egyptian doctor who put pants on rats to study their sex lives and a British researcher who lived like an animal have been named winners of the Ig Nobels, the annual spoof prizes for quirky scientific achievement.

The winners were honored - or maybe dishonored - on Thursday in a zany ceremony at Harvard University.