Wednesday, 20 December 2023

Nice To See You Again

University of California, Berkeley researchers found that Bonobos and Common chimpanzees exhibited impressive long term memory of former peers. Thus far, it's longer than any other tested non-human species (https://www.theguardian.com/science/2023/dec/18/chimps-recognise-peers-decades-later-long-term-memory). The researchers found these primates could recognise former peers, even decades after separation. Their likelihood of recognition was increased, if the pair had got on well in their earlier encounters. I wonder, however, if any were simply pretending not to recognise apes, they hadn't 'liked'. That would be even more humanoid!
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