两足动物 [
liǎng zú dòng wù]
bipedal
biped
- 这证明,两足动物的演化史并不是在大草原上进行的。 但是,由于毛发不会变成化石,因此很难确定原始人类在什么时候开始失去毛发。
That proved bipedalism did not evolve on the savannah, but since hair does not fossilise, it is hard to establish when the hominids began to lose it. - 但由于缺少决定性的化石证据,关于这种灵长类动物是否是两足动物--以及她在人类的家族树中究竟占据什么位置--存在着许多猜测。
But lack of definitive fossil evidence has many guessing whether this primate was really a biped—and just where she might fit on the human family tree. - 而且他的理论还声称为人类所有的神秘特征提供了一种解释:两足动物,无毛发,脂肪层,喉结遗传,嗅觉丧失等等。
But his theory claims to offer one explanation for a whole range of enigmatic human features: bipedality, hairlesslessness, fat layer, descended larynx, loss of olfaction, and so on.
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