Ai, a renowned “genius” chimpanzee known for counting, recognising symbols, colours and painting, died aged 49 from old age ...

Ai, a "genius" chimpanzee who could recognise more than 100 Chinese characters and the English alphabet, has died aged 49, ...

West African-born primate, famed for recognising numbers and colours, passed away in Japan from age-related organ failure ...

Chimpanzees and bonobos are among the closest living relatives of humans. They share more than 98% of our DNA, highlighting ...

Ai, the chimpanzee advanced primate intelligence studies by mastering languages and colours, leaving a legacy in cognitive ...