The world's most famous chimpanzee has died. He was 49 years old and lived in Japan. The cause of death was old age and organ failure.
The animal was known for its cognitive abilities. It was able to process numbers and distinguish colors. At the age of five, it mastered the numbers 1 to 6 and could name the number, color, and object of more than 300 objects.
In its free time, the chimpanzee loved to draw. It would draw on paper with markers on its own, without any food incentives. In 2000, the chimpanzee gave birth to a son named Ayumu, who also became famous for his exceptional memory.