Berlin, Germany German chapter of People for the Ethical Treatment of Animals (PETA) has requested for Germany's favorite polar bear, Knut the polar bear who shot to global stardom as a cub in 2007, to be castrated to avoid him mating with his cousin Giovanna. “Knut fans should be aware that only Knut’s castration would allow a long-term cohabitation of Giovanna and Knut. All other hopes and desires would bring the polar bear population in captivity to its pre-programmed demise even more... Full Story