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cover of episode How do we know what dinosaurs sounded like?

How do we know what dinosaurs sounded like?

2025/5/7
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Moment of Um
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Shaina Montaneri
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Shaina Montaneri: 我们很难确切地知道恐龙的声音，因为产生声音的喉咙部位是软组织，而软组织通常不会形成化石。虽然电影中经常出现恐龙的巨大吼叫声，但这很大程度上是电影特效的产物。 为了推测恐龙的声音，我们可以研究恐龙的近亲，例如鳄鱼和鸟类。鸟类拥有特殊的鸣管（syrinx），它是发声器官。如果恐龙也拥有类似的鸣管，那么它们可能发出类似鸟类的叫声。然而，目前发现的最古老的鸣管来自6700万年前的鸟类，而非恐龙，这使得我们难以确定恐龙是否真的拥有鸣管。 许多古生物学家认为，恐龙可能发出类似鳄鱼的低沉声音，例如隆隆声或咆哮声，而不是电影中那种张开嘴巴的巨大吼叫声。这是因为恐龙可能发出闭合嘴巴的声音，而这种声音的产生方式与软组织的保存方式更为相符。总而言之，由于软组织不易形成化石，我们对恐龙声音的了解仍然有限，只能通过研究其近亲和化石证据进行推测。

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Happy Dinosaur Week! Every episode this week explores the ancient marvels that walked the Earth millions of years ago. Fossilized bones and footprints help scientists figure out what these prehistoric creatures looked like – but how do we know what they sounded like? We asked paleontologist and science journalist Shaena Montanari to help us find the answer.

Got a question that makes you want to roar in frustration? Send it to us at BrainsOn.org/contact) and we’ll find a dino-mite answer.