ADVERTISEMENT
  About the SA Blog Network

Posts Tagged "carbon isotope"

Observations

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 [...]

Keep reading »

More from Scientific American

Scientific American Special Universe

Get the latest Special Collector's edition

Secrets of the Universe: Past, Present, Future

Order Now >

X

Email this Article

X