baleen whales 中文意思是什麼
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Large baleen whales primarily use the lower frequencies and are often limited in their repertoire
大長須鯨最初使用低頻，他們的全套本領很有限。 -
However, the position of the eyes so restricts the field of vision in baleen whales that they probably do not have stereoscopic vision
但是，由於眼睛的位置太受約束，長須鯨可能沒有立體視覺。 -
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
在隨后的漸新世地層中，他們也找到了一些線索；須鯨亞目（有鯨須的鯨魚）與齒鯨亞目（有齒的鯨魚）就是在那時候分化的。
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