more evidence for evolution (no, not Evolution)

A really fun little nugget-- especially for boys, 3rd-10th grades (given two of the words used in the story)-- from News of the Weird (by way of IU and the New Scientist)...

Indiana University researchers reported in September that male Australian dung beetles differ from U.S. dung beetles in that evolutionary diversion of nutrients has given the Australians small horns but large penises and the Americans the opposite. Thus, noted the researchers, big-horned American males tend to fight each other for females, while Australians rely more on sneakiness.