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How the earliest mammals thrived alongside dinosaurs

An explosion of fossil finds reveals that ancient mammals evolved a wide variety of adaptations allowing them to exploit the skies, rivers and underground lairs.
John Pickrell is a science journalist and author in Sydney, Australia.

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Early mammals like this rat-sized species Liaoconodon hui coexisted with feathered dinosaurs like Sinotyrannus in the temperate ecosystems of the Cretaceous in what is now Liaoning in northern China. Illustration by Davide Bonadonna

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Nature 574, 468-472 (2019)

doi: 10.1038/d41586-019-03170-7

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Supplementary Information

  1. Early Mammals Infographic

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