How does a wombat produce cube-shaped feces?  How long does it take an elephant to urinate? 

Answering these two questions have landed David Hu two Ig Nobel Prizes, awards given  at Harvard University for research that makes people laugh, and then think. Hu will talk about his lab's latest adventures catching elephant pee in trash cans, inflating wombat intestines with clown balloons, and dressing up as a gigantic piece of cubed poo at this year's Ig Nobel Ceremony.