Koko, the gorilla who was taught sign language, died on June 19, 2018 at the age of 48. Her signing abilities were amazing (she could sign about 1,000 words) and videos of her on YouTube are very touching to watch. It's easy to believe she's communicating with humans. Watch these videos about Koko's Best Moments.
First choose your response from the scale on the left and then click the red Submit button. Then click the Next button to continue our exploration of Koko.