Abstract
Sticks are described which have been shaped and used by chimpanzees of the subspeciesPan troglodytes troglodytes in the mountainous region of Okorobikó in central Rio Muni (West Africa). References are also made to the utilization of these sticks for the obtaining of termites of the speciesMacrotermes mülleri andMacrotermes sjöstedt. It is indicated that in Rio Muni this elemental industry is known only to some of the groups of these pongids, inhabiting moreover areas relatively close to each other. Also presented is a new map indicating in summary manner the distribution of the principal elemental industries known to chimpanzees in the wild.
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Sabater Pí, J. An elementary industry of the chimpanzees in the Okorobikó mountains, Rio Muni (Republic of Equatorial Guinea), West Africa. Primates 15, 351–364 (1974). https://doi.org/10.1007/BF01791672
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DOI: https://doi.org/10.1007/BF01791672