Pandas are an evolutionary dead end. Reproductive issues aside, we are talking about an animal that almost exclusively eats bamboo...yet is unable to properly digest bamboo in a manner that provides substantial nutrition. Humans encroaching on Panda habitats wouldn't be so much of a problem if they ate meat like carnivores are supposed to. Instead they have to eat ridiculous amounts of bamboo just to stay alive. Gotta say they're up against it.