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Posts Tagged "carbon isotope"


Ancient Tartar, Other Dental Clues Reveal Unexpected Diet of Early Human Relative

sediba skull

Last fall, on a reporting trip to Johannesburg for a story on the discovery of fossils representing a previously unknown member of human family called Australopithecus sediba, the researchers I met with were buzzing with excitement about, of all things, tartar. That’s right, the crusty deposits that the dentist scrapes off your teeth when you [...]

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