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The Yawns Have It

机译:打哈欠有它

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摘要

A few smiles, yawns and grimaces into the camera were all it took for Tanya Smith to shatter one of the longest-held truisms in primate studies - that a young chimpanzee's molar development can be used as a proxy for developmental milestones such as age of nursing and weaning. For decades, researchers assumed that chimps, like other nonhuman primates, weaned their young once the back teeth started coming in. The belief was so ingrained that paleoanthropologists and others investigating human evolution figured that if they saw molar eruption in the fossilized skull of a young human ancestor, they'd assume they knew the age and feeding behavior.
机译:丹妮·史密斯(Tanya Smith)打破了灵长类动物研究中历史最悠久的假说之一,镜头里只有微笑,打哈欠和鬼脸–一只年轻的黑猩猩的臼齿发育可以用来代替诸如护理年龄之类的发展里程碑和断奶。数十年来,研究人员一直认为黑猩猩与其他非人类灵长类动物一样,一旦后牙开始进食时就断奶了。这种信念根深蒂固,以至于古人类学家和其他研究人类进化的人认为,如果他们看到年轻化石头骨中的磨牙萌出,人类祖先,他们会以为他们知道年龄和喂养行为。

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  • 来源
    《Discover》 |2013年第6期|14-14|共1页
  • 作者

    SUSANNE RUST;

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