It is morally permissible for extraterrestrials to eat humans on the condition that it is morally permissible for humans to eat animals. But either it is not morally permissible for mentally superior extraterrestrials to eat humans or human life lacks intrinsic value. However, human life has intrinsic value. We are forced to conclude that it is not morally permissible for humans to eat animals.(E: It is morally permissible for mentally superior extraterrestrials to eat humans; H: It is morally permissible for humans to eat animals; V: Human life has intrinsic value).