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17 April 2014 12:48 pm ,
Vol. 344 ,
Officials last week revealed that the U.S. contribution to ITER could cost $3.9 billion by 2034—roughly four times the...
An experimental hepatitis B drug that looked safe in animal trials tragically killed five of 15 patients in 1993. Now,...
Using the two high-quality genomes that exist for Neandertals and Denisovans, researchers find clues to gene activity...
A new report from the Intergovernmental Panel on Climate Change (IPCC) concludes that humanity has done little to slow...
Astronomers have discovered an Earth-sized planet in the habitable zone of a red dwarf—a star cooler than the sun—500...
Three years ago, Jennifer Francis of Rutgers University proposed that a warming Arctic was altering the behavior of the...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
- About Us
Live Chat: Who Was the First Human?
22 June 2011 10:08 am
See below for the chat box. Join us each Thursday at 3 p.m. EST for a live conversation with leading scientists and expert reporters.
In 1959, scientists excavating at Olduvai Gorge in Tanzania found fossils that they believed belonged to the earliest member of the human family—a creature known as Homo habilis, which lived 2.3 million to 2.4 million years ago. In the past decade, however, researchers have analyzed the bones of H. habilis with new methods, finding that in many ways this species was still eating and developing more like an ape than a modern human. So just who were the first humans? What do recent findings tell us about how our species evolved? And what new discoveries are changing our thinking about where we came from?
Join us for a live chat at 3 p.m. EDT on Thursday, 23 June, on this page about the origins of the first human. You can leave your questions in the comment box below before the chat starts.
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William Kimbel is the director of the Institute of Human Origins at Arizona State University. He conducts field, laboratory and theoretical research in paleoanthropology, with a primary focus on Plio-Pleistocene hominid evolution in Africa. He is also interested in the application of evolutionary and systematic theory to paleoanthropological problems.
Peter Ungar is chair of the Department of Anthropology at the University of Arkansas. His research interests focus on paleoecology, and more specifically, the evolution of dietary adaptations in early human ancestors and other fossil mammals.