Granted, if she descended from Australopithecus, which had massive jaws and teeth, one has to account for her relatively delicate jaws and dainty dentition.

• 另一方面，如果LB1是南猿人的后裔，就必须解释她的颚为什麽相对而言那麽纤细，牙齿那麽小，因为南猿人的颚很粗壮，牙齿又大。