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4喙是鸟类的重要器官。 不同的鸟拥有不同形态的喙，应对的是他们不同的功能。 为什么同样是鸟，在不同种类之间喙的区别这么大？除了吃东西以外，还有其他的功能么？为什么有时候会看到有的鸟的喙长得非常异于常鸟？在本期内容， 我们来说说鸟喙的进化与功能，当然还有一些小知识。
图片来源：晒宁鼻涕（小红书：晒宁鼻涕）栗臀䴓
图片来源：Martin Renner 黑顶山雀
图片来源：网络 短嘴鸦
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参考文献
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