Sentient Biped sent me this link -- so I thought I'd share it with you all.   When, at the end of Alien, Sigourney Weaver says, "This is Ripley, last survivor of the Nostromo, signing off," she's not telling the whole truth. Because there's another survivor, curled up with her in the hypersleep capsule. Jones (or Jonesey) the ginger tom. Jones serves multiple functions within the Alien storyline…