Naïve orangutans (Pongo abelii and Pongo pygmaeus) individually acquire nut‐cracking using hammer tools
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DOI: 10.1002/ajp.23304
Abstract: Nut‐cracking with hammer tools (henceforth: nut‐cracking) has been argued to be one of the most complex tool‐use behaviors observed in nonhuman animals. So far, only chimpanzees, capuchins, and macaques have been observed using tools to… read more here.
Keywords: orangutans pongo; abelii; pygmaeus; nut ... See more keywords