In 2012, I wrote a post titled Chimps 1, Humans 0 after seeing videos of a chimp named Ayumu. Ayumu could recall the location of numbers, in order, flashed briefly on a screen. Ayumu’s performance far exceeded my feeble attempts. See the below videos to get a sense of the task. The human Ayumu This performance, documented by Inoue and Matsuzawa (2007) in Current Biology, was used to assert that chimps have superior working memory to humans. The claim has spread widely, as a brief search on ...