The gorilla foundation is best known for conducting the longest interspecies communication study in history (almost 5 decades) and the only one involving gorillas: Project koko. Koko, the adored gorilla known for her sign language skills, has died at the age of 46.

Established in 1976 as a 501 (c) (3) corporation, it is best known for “project koko,” the longest interspecies communication study in history, and the only one involving gorillas. It has evolved into … Koko is perhaps the best known gorilla in the world because of her sign language and artistic abilities, her relationships with kittens, and a considerable amount of worldwide media since she was a baby. Koko gained public attention as the subject of two national geographic cover stories and, in 1985, the best-selling children's picture book, koko's kitten. Koko became the world's most famous … Koko, the western lowland gorilla that died in her sleep tuesday at age 46, was renowned for her emotional depth and ability to communicate in sign language.

Koko became the world's most famous … Koko, the western lowland gorilla that died in her sleep tuesday at age 46, was renowned for her emotional depth and ability to communicate in sign language.