1·For this reason, we had an extra set of molars to make the larger mouth more productive.
由于这个原因，我们有一套额外的臼齿，让我们的嘴更大也更有效率。
2·Therefore, when those reserve molars, aka "wisdom teeth," came in they were welcomed.
因此，那些保留的臼齿，也称作“智齿”是应该有的。
3·Of the two large forward claws, the larger claw linedwith what look like molars is called the Crusher.
两只前爪里，大一点的、长着类似臼齿的东西的那只叫锤爪。
4·As evolution made its selections, our diets changed, our jaws grew appropriately smaller, and our third molars became unnecessary.
由于进化中的不断选择，我们的饮食发生了变化，我们的下巴也相应变小，而第三臼齿也就没用了。
5·Her features include relatively short limbs, grasping hands, opposable thumbs, shovel-like front teeth, square molars, and digits with nails rather than claws.
相对较短的四肢、用于抓握的手部、对生木质、铲形前齿、方形臼齿和带有指甲指头而不是爪子，这些都是艾达化石的典型特征。