The Button of Your Belly

Contenders for the Ig Nobel Prize abound (see "It's the Ig Nobels!," Sept. 21, 2012, and "A New Ig Nobel Winner?," Nov. 2, 2012)! Meet Rob Dunn, who somehow found himself transplanted from the perfectly defensible study of rain forests into exploring the dark, humid, and sometimes overgrown depths of the human umbilicus: http://blogs.scientificamerican.com/guest-blog/2012/11/07/after-two-years-scientists-still-cant-solve-belly-button-mystery-continue-navel-gazing/