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Meet Koko's New Kittens

Koko got her birthday wish this July 4th — not only did one kitten come to visit, but a whole litter. Koko fell in love with one, and the other fell in love with her.

Koko's Quest for a Baby

Koko has been telling us for some time, via sign language and play behavior, that she wants to raise a baby gorilla and have a larger family. Helping Koko adopt ...

When Koko Met Ndume

Ndume is a male gorilla who came to live with Koko when he was 10 years old, in 1991, from the Cincinnati Zoo. Koko selected him via a process similar to ...

Koko Eats All Her Veggies

Koko eats a breakfast largely comprised of vegetables, and finishes every last bit. She starts with a plastic container full of cooked, mixed vegetables, which she ...

Koko Vocalizes a "Who" Sound

Koko demonstrates her ability to control her vocalizations and breath, by using a "blow-test" as a welcome gesture during her meeting with the late Mister (Fred) ...