Ig Nobels honor research in mammal pee and un-boiled eggs

  • "The Stinker" is the official mascot of the Ig Nobel Prize Improbable Research

    For 25 years, the Improbable Research group has been presenting esteemed scientists with Ig Nobel awards for work that was deemed funny but also made you think. This year's award recipients include people whose research elucidated urination, clarified the universal language of confusion and investigated the benefits of kissing (beyond the obvious ones).

    Click through to see the 2015 winners.

  • Michael Casey

    Michael Casey covers the environment, science and technology for CBSNews.com