Chimpanzee Ai, who recognized letters, numbers, and hieroglyphs, has died at the age of 49
The famous chimpanzee named Ai, known for her ability to recognize letters, numbers, and hieroglyphs, has passed away. She died on January 9 at the age of 49, as reported by the Center for the Study of Human Evolutionary Behavior, formerly known as the Primate Research Institute at Kyoto University, according to RIA Novosti. According to representatives of the institute, Ai died due to old age and organ failure, surrounded by staff. Since 1977, when she was admitted to the institute, the