Summary
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.
"eat" - Google News
January 17, 2020 at 01:43AM
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Eat and listen—how chewing and hearing evolved - Science Magazine
"eat" - Google News
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