Alex the parrot’s last experiment shows his mathematical genius
Even in death, the world’s most accomplished parrot continues to amaze. The final experiments involving Alex – a grey parrot (Psittacus eithacus) trained to count objects – have just been published.
They show that Alex can accurately add together as many as eight Arabic numerals and three sets of objects, putting his mathematical abilities on par with (and maybe beyond) those of chimpanzees and other non-human primates. The work was just published in the journal Animal Cognition.