Chimp Archeo
Embargoed until February 12, 2007, 5 pm EST
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| Illustration by Marianne Corless | Examples of some of the stones that were excavated. Analysis shows they were used by chimpanzees some 4,300 years ago to crack nuts. Photo illustration courtesy | Dr. Julio Mercader, University of Calgary, in his laboratory. Photo courtesy |
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Toubo Youode Eloi, Ivorian fieldwork assistant, at the Nuolo excavation in the Taï rainforest of Africa’s Côte D’Ivoire. Photo courtesy | Closeup of a so-called 'chimpanzee stone hammer' under excavation. Photo courtesy | Sio Toh Leon, Ivorian fieldwork assistant, shows the size of exposed tree roots in the Taï rainforest of Africa’s Côte D’Ivoire. Photo courtesy |
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Dr. Christophe Boesch, Max Planck Institute for Evolutionary Anthropology, excavates a stone in the Taï rainforest of Africa’s Côte D’Ivoire. Photo courtesy |