Genius Chimpanzee 'Ai' who could draw on computer & count, dies aged 49

Ai, a genius chimpanzee who could recognise more than 100 Chinese characters and the English alphabet, has died aged 49, Japanese researchers said. Ai, which means love in Japanese, could also identify Arabic numerals from 0-9 and 11 colours. In a study, Ai had picked out rectangle, circle and dot on computer screen to draw a "virtual apple".