A standing animal can see predators from farther away, another survival advantage.
直立动物还有一个存活优势是:它们能看得见在远处的敌人。
But now you have a lot of standing animals. A standing animal can see predators from farther away, another survival advantage.
但是现在有了很多可以直立的动物,一个直立的动物可以从很远的地方看到掠夺者,这是另一个生存优势。
When we think about animal locomotion... whether it's walking, running, or just standing around... we usually focus on the bones and muscles in the legs and feet.
每次说到动物的活动——无论是踱步、奔跑抑或只是静止不动,我们总是注意到这些活动中四肢骨骼及肌肉的变化。
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