This year's Ig Nobel awards have just been presented by the science humor publication "Annals of Improbable Research," and the 2013 crop of dubious achievements did not disappoint. They included the revelation that lost dung beetles can use the Milky Way's light for homeward navigation.
The magazine also awarded this year's physics prize for the discovery that, yes, humans can walk on water ... well, so long as the humans and the water are on the moon. Kind of a buzzkill, that caveat!
Let's revisit some more Ig Nobel winners, past and present.