Robert with Onan signing "hat". Source: Robert Ingersoll, with permission. I recently learned of a book by Robert Ingersoll and Antonina Anna Scarnà titled Primatology, Ethics, and Trauma: The ...
Koko, the gorilla who mastered sign language, died at the age of 46. Koko, the gorilla who mastered sign language and became a pop-culture phenomenon, will be laid to rest Saturday in a ceremony at an ...
A rescue cat using "sign language" when hungry has taken over TikTok. In a clip shared by user @ohcharliecat on January 24, a ginger tabby called Charlie can be seen putting his paws together and ...
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