Koko, the western lowland gorilla who learned sign language, died on Thursday. Koko, the western lowland gorilla who learned sign language and became a pop-culture phenomenon, has died at the age of ...

WOODSIDE, Calif.-- Koko, the gorilla who mastered sign language, has died. The Gorilla Foundation says the 46-year-old western lowland gorilla died in her sleep at the foundation's preserve in ...

Koko the gorilla, who has died at the age of 46, was famed for her communication skills and her mastery of sign language. Taught by animal psychologist Francine "Penny" Patterson and others since the ...

"The Gorilla Foundation is sad to announce the passing of our beloved Koko," the research center says, informing the world about the death of a gorilla who fascinated and elated millions of people ...

Koko, the western lowland gorilla who learned to speak sign language and had an affinity for kittens, died in her sleep Wednesday. She was 46. The Gorilla Foundation announced Koko’s death, saying she ...

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 ...

KOKO, the beloved western lowland gorilla who mastered sign language, raised kittens, and famously played with Robin Williams, has died aged 46. The Gorilla Foundation says the western lowland gorilla ...

Koko, the beloved gorilla who shocked the world with her mastery of sign language and ability to communicate with humans, died in her sleep at the age of 46, officials announced Thursday. The western ...

Perhaps the most incredible scene in “Won’t You Be My Neighbor?,” the recent documentary about Mr. Rogers, features Mr. Rogers meeting Koko, the beloved western lowland gorilla. Koko, who died in her ...

Koko the gorilla doted on her pet kitten as if it were her own child. To the amazement of her human handlers, she seemed able to capture the joys and annoyances of maternal love in strings of simple ...

Millions continue to mourn a gorilla, and that’s a good sign for humanity. Koko, a western lowland gorilla, died in her sleep at age 46 last week. Koko started learning a version of American Sign ...

In several previous experiments, sign language has been taught to chimpanzees, but this is the first real attempt with a gorilla. At left, Koko indicates "eat" with bunched fingertips to her lips and ...