But nobody had actually ever seen inside the throat of an animal as it vocalised.
但没人真正见过动物发时其喉咙状态。
The mammalian vocal tract is incredibly flexible so whether we're looking at dogs or pigs or goats or monkeys, we always see the same thing, that the, the anatomy rearranges itself very dynamically while the animal is vocalising.
哺乳动物道长度变化相当灵活,不论是观测猪、狗,还是山羊、猴子,我们总能看到同样结果它们生理结构随发过程动态地变化着。