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Eat and listen—how chewing and hearing evolved
Science ( IF 44.7 ) Pub Date : 2020-01-16 , DOI: 10.1126/science.aba3808 Julia A Schultz 1
Science ( IF 44.7 ) Pub Date : 2020-01-16 , DOI: 10.1126/science.aba3808 Julia A Schultz 1
Affiliation
Mammalian middle ear bones separated from the jaw of vertebrate ancestors In rare cases, fossils function like snapshots, capturing key moments of evolution. One of these rare cases is Origolestes lii, a stem therian mammal from the Yixian Formation (China) described by Mao et al. (1) on page 305 of this issue. The study provides a glimpse of a fundamental moment in mammalian evolution—the separation of middle ear elements from the Meckelian cartilage of the lower jaw, which provided freedom to the system to improve both chewing function and hearing ability.
更新日期：2020-01-16
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