Chimpanzees' complex cultures, including the use of tools and other behaviors, are being lost as human disturbance expands into previously wild areas, says a sweeping new paper published in the journal Science. The ten-year study, led by the Max Planck Institute for Evolutionary Biology and the German Centre for Integrative Biodiversity Research, spanned 46 locations and 15 countries, providing the most complete description of chimpanzee culture to date. WCS, Lincoln Park Z...

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