The Mammal ancestor after the Dinosaurs

Over twenty scientists, after six years of collaboration, have completed the most comprehensive picture of mammalian ancestry to date, just after the extinction of dinosaurs, 65 million years ago.   The last common ancestor from which all placental mammals emerged.    Image © Carl Buell

The researchers using a combination of physical and genetic data, reconstructed the family tree of placental mammals, comprising today over 5,100 species.

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