If homo erectus and paranthropus were threatened by the same predators , but the former ' s social skills made it even a little more likely to escape , the small difference would have become a great advantage over time 如果直立人和傍人当时面临着相同的捕食动物的威胁，但前者的社会技能使其较之后者拥有稍多些的逃跑可能。
