Their species are mortal enemies, but a mama cat has adopted a baby squirrel in Carthage, Mississippi, nursing it along with her own kittens.The squirrel, now named Rocky, fell from a tree, so the cat's owner just stuck the little guy in with the kittens. Rocky thrived. Rocky adapted. Now, Rocky purrs. It's a heart-warming tale about acceptance. Or a sign of the apocalypse. One of those.