Who Is Koko The Gorilla & Is She Really That Smart?

Koko the Gorilla is famous for her love of kittens and use of sign language. So, just how did she get so smart?

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An audience with Koko the 'talking' gorilla (Telegraph)
"She knows more than 2,000 words, has friends in high places and loves cats and old films. But in her 40th year, Koko the 'talking' gorilla seeks a new challenge - a baby."

A Conversation With Koko the Gorilla (The Atlantic)
"One of the first words that Koko used to describe herself was Queen. The gorilla was only a few years old when she first made the gesture-sweeping a paw diagonally across her chest as if tracing a royal sash."