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八哥鸟为什么会说话
更新时间: 2020-10-03 00:00:00  

八哥说话的原因:

秘密就在于它的生理构造鸣管和舌头。八哥的发声器叫鸣管,位于气管与支气管的交界处,它的鸣管中有四五对特殊肌肉鸣肌,在神经系统的控制下,鸣肌收缩或松弛,发出鸣叫声。

八哥鸣管的构造也与人的声带构造相近。人的声带从喉咙到舌端有20厘米,呈直角,而八哥的鸣管到舌段15厘米,呈近似直角的钝角。越接近直角,发声的音节感和腔调感越强,所以八哥能像人一样发声。八哥的舌头也很发达,形状也与人的舌头相似,因为具备了标准的发声条件。

关键词: 八哥 为什么 说话

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