Washoe, a female chimpanzee trained by beatrice and allan gardner, learned to use well over 150 signs.

Verkkoallen and beatrix (“trixie”) gardner welcomed a chimpanzee named kathy to reno, nevada.

Like the others, loulis also acquired signs of.

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Verkkowashoe is said to have taught loulis signs, representing the first time a primate learned sign language from another chimp instead of a human researcher.

Often dismissed as mere mimics, they were remarkable even by that standard.

It turned out that.

Some apparently were used as.

Verkkowashoe, however, invented her own sign, consisting of drawing the fin­ gers of both hands down her chest where the edges of the bib were located.

Verkkowashoe’s adoption of loulis began a functional third phase of the signing research with chimpanzees.

Washoe, originally taken as an infant from the.

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