Koko and All Ball In 1984, a gorilla named Koko picked out a kitten. She signed its name: All Ball. She carried it like a baby. Tried to nurse it. Months later, the kitten was hit by a car. Koko signed 'cry,' 'sleep,' 'cat.'
Spot an error? Email hello@thefact5.com with a source — we correct visibly.

