Fun_People Archive
26 Oct
Chimps, Toolmaking, & Dumb Men Jokes?
Date: Wed, 26 Oct 94 18:10:38 PDT
To: Fun_People
Subject: Chimps, Toolmaking, & Dumb Men Jokes?
Forwarded-by: lanih@info.Berkeley.EDU (J. Lani Herrmann)
Forwarded-by: Cal Herrmann <arminius@nature.Berkeley.EDU>
From: huston@access.digex.net (Herb Huston)
In article <371uje$b4a@access4.digex.net> is written:
>In article <1994Sep30.071745.5696@totsyssoft.com>,
>Richard Jacoby <rick@TotSysSoft.com> wrote:
}I've read about this also. It was a macaque named Imo, and she started out
}washing sand off sweet patatoes. Next her playmate learned how to do this,
}then her mother. After that, many of her young peers learend how to do it.
}Within seven years, many of the mothers were washing, so most of the
}infants picked it up. After that virtually everyone did it.
Not quite everyone. See below.
}The same macaque figured out you can throw sandy wheat in the ocean, the
}wheat will float, the sand sink, then the wheat can be skimmed of the
}surface.
Yes, Imo had discovered placer mining, the technique that's used in panning
for gold. She has been called the Archimedes of the Macaques.
}In both cases other females were the first to copy, then children of both
}sexes then adult males..
Actually the adult males never picked up either potato-washing or placer
mining. That's why some primatologists refer to senior faculty members who
can't quite pickup on word processing or posting to Usenet as "macaque
males."
There's a highly readable account of Imo in Carl Sagan's and Ann Druyan's
_Shadows of Forgotten Ancestors_ with references to the technical
literature. Also, David Attenborough visits the monkeys of Koshima Island
in the penultimate episode of _Life on Earth_. Finally, about 2.5 years
ago I had the opportunity to converse with a Japanese primatologist; my
first question for him was whether the Koshima macaques were still washing
their sweet potatoes, and his reply was that they were.
© 1994 Peter Langston