What is the primary biological function of a whale's blowhole(s)? 鯨魚噴氣孔的主要生物學功能是什麼？
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To expel air and inhale fresh air at the water's surface. 在水面上排出廢氣並吸入新鮮空氣 The blowhole is a modified nostril located on the top of the whale's head, allowing them to breathe efficiently when surfacing. 噴氣孔是位於鯨魚頭頂部的改良鼻孔，讓它們在浮出水面時能高效率地呼吸。