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[xmca] latest challenge to human/primate gap

* Until recently, researchers were certain that at least one ability
separated humans from higher-functioning apes:  the creation and use of
tools for sex.  However, primatologists writing in a recent issue of Science
described a male chimpanzee's repetitive use of a dried leaf in the same way
that a male human of a certain class might employ a fast car.  In the
presence of a female chimp, the male carefully crinkles the leaf until
she--seemingly accustomed to such leaf-crinkling--notices the male, along
with his generous erection, and may then choose to join him. [New York
Times, 5-4- 10]


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