1.If it turns out that the big two - bipedality and nakedness - arose at roughly the same time, that might shift the balance of probability some little way toward Hardy.
假如两大特征——两足动物和无毛发——结果是差不多同时出现的话，那么可能性的天平就会略微倾向于哈代了。
2.If it turns out that the big two - bipedality and nakedness - arose at roughly the same time, that might shift the balance of probability some little way toward Hardy.
假如两大特征——两足动物和无毛发——结果是差不多同时出现的话，那么可能性的天平就会略微倾向于哈代了。
3.Bipedality made a big difference in a hostile and unforgiving world.
在一个敌对而无情的世界里，能否用两足行走有很大的区别。
4.One theory is that bipedality evolved in conjunction with the nuclear family: monogamous parents cooperating to care for their offspring.
有一种理论认为，两足动物的进化与核心家庭有关：一夫一妻制的父母合作照顾他们的后代。