Koko, the signing gorilla, made me uncomfortable. She was too intelligent, too intuitive, too human. I was wary of her, yet in awe of her. What disturbed me most is what Koko represented. She was the ...

Humans around the world are mourning the death of 46-year-old Koko, the western lowland gorilla who could communicate using a variant of American Sign Language optimized for the anatomy of a gorilla’s ...

Prefer Newsweek on Google to see more of our trusted coverage when you search. Koko, a western lowland gorilla known for her impressive sign language skills, died in her sleep Tuesday morning at the ...

We ascribe human qualities to animals. Still, few of them get assigned as much humanity as Koko, the western lowland gorilla that purportedly could “speak” in sign language about 1,000 words, ...