Article 11 Dim Forests, Bright Chimps

Article 11 Dim Forests, Bright Chimps - there was a...

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Article 11: Dim Forest, Bright Chimps By: Christophe Boesch and Hedwige Boesch-Achermann - While chimps in Gombe hunt, they do not hunt as cooperatively as the chimps in Tai do o Hunts are much more successful when done in groups o Tai chimps hunt in groups 92% of the time o Gombe chimps hunt in groups only 36% of the time They are also less coordinated than the chimps at Tai - Some people have proposed that group hunting and cooperation were key ingredients in the evolution of man o This is how we developed the social systems that are so typically human - Chimps often use tools to crack open their nuts o The Tai chimps use stone hammers, but not the ones at Gombe - The current theory of human evolution is that some three million years ago,
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Unformatted text preview: there was a dramatic climate change that turned the dense forest into open, drier habitat o This is supported by the fact that plant and animal remains indicative of dry, open environments have been found at all early hominid excavations o Also, a large majority of apes live west of the Rift Valley the drier, more open habitat o However, observations have challenged this theory The forest chimps in Tai have more tools and more ways to manufacture them than the savanna chimps at Gombe-Now, anthropologists believe that the process of hominization began independently of the drying of the environment o In fact, the drying of the environment might have even delayed development...
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Article 11 Dim Forests, Bright Chimps - there was a...

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