以下为句子列表:
英文: Baleen species,on the other hand, appear to have some related brain structures but it is not known whether these are functional.
中文: 另一方面,鲸须类出现拥有相同的脑结构但是不知道他们是否有用。
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英文: However, the position of the eyes so restricts the field of vision in baleen whales that they probably do not have stereoscopic vision.
中文: 但是,由于眼睛的位置太受约束,长须鲸可能没有立体视觉。
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英文: Large baleen whales primarily use the lower frequencies and are often limited in their repertoire.
中文: 大长须鲸最初使用低频,他们的全套本领很有限。
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英文: They have also unearthed some clues from the ensuing Oligocene, when the modern suborders of cetaceans—the mysticetes (baleen whales) and the odontocetes (toothed whales)—arose.
中文: 在随后的渐新世地层中,他们也找到了一些线索;须鲸亚目(有鲸须的鲸鱼)与齿鲸亚目(有齿的鲸鱼)就是在那时候分化的。
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英文: Toothed species in general employ more of the frequency spectrum, and produce a wider variety of sounds, than baleen species (though the sperm whale apparently produces a monotonous series of high-energy clicks and little else).
中文: 齿鲸一般是用更多频率并且产生一个广的变化的声音,和长须鲸相比(尽管抹香鲸显然能发出一系列单调的高能咔嚓声,其他基本不会)。
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