Ayumu (chimpanzee)

{{short description|Chimpanzee research subject, child of Ai}}

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| name = Ayumu

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| species = chimpanzee

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| gender = male

| birth_date = {{Birth date and age|2000|04|24}}

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| parents = Ai (chimpanzee)

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Ayumu (born 24 April 2000){{cite web|url=https://langint.pri.kyoto-u.ac.jp/ai/en/friends/ayumu.html|title=Ayumu the Chimpanzee Living in the Primate Research Institute, Kyoto University - Chimpanzee Ai|website=Langint.pri.kyoto-u.ac.jp|access-date=21 February 2019|archive-date=23 January 2020|archive-url=https://web.archive.org/web/20200123184545/http://langint.pri.kyoto-u.ac.jp/ai/en/friends/ayumu.html|url-status=dead}} is a chimpanzee currently living at the Primate Research Institute of Kyoto University. He is the son of chimpanzee Ai and has been a participant since infancy in the Ai Project, an ongoing research effort aimed at understanding chimpanzee cognition.{{Cite journal | last1 = Matsuzawa | first1 = T. | title = The Ai project: Historical and ecological contexts | doi = 10.1007/s10071-003-0199-2 | journal = Animal Cognition | volume = 6 | issue = 4 | pages = 199–211 | year = 2003 | pmid = 14566577| s2cid = 8928490 }} As part of the Ai Project, Ayumu participated in a series of short-term memory tasks, such as to remember the sequential order of numbers{{cite web|url=https://fson4.github.io/|title=Numerals - Arrows}}{{Dead link|date=September 2023 |bot=InternetArchiveBot |fix-attempted=yes }} displaying on a touch-sensitive computer screen.{{Cite web | title = Chimp solves memory test 'faster than blink of an eye' | url = http://www.bbc.co.uk/nature/16832379 | archive-url = https://web.archive.org/web/20120208180028/http://www.bbc.co.uk/nature/16832379 | url-status = dead | archive-date = February 8, 2012 | year = 2012 | publisher = BBC}} His performance in the tasks was superior to that of comparably trained university students, leading to a possible conclusion that young chimpanzees have better working memory than adult humans.{{cite web|url=http://edition.cnn.com/2007/TECH/science/12/03/chimp.memory.ap/index.html|archive-url=https://web.archive.org/web/20080609101803/http://edition.cnn.com/2007/TECH/science/12/03/chimp.memory.ap/index.html|url-status=dead|archive-date=9 June 2008|title=5-year-old chimp beats college kids in computer game|work=CNN.com|date=9 June 2008|access-date=21 February 2019}} This conclusion has been disputed.{{Cite journal|last1=Silberberg|first1=Alan|last2=Kearns|first2=David|date=March 2009|title=Memory for the order of briefly presented numerals in humans as a function of practice|url=http://link.springer.com/10.1007/s10071-008-0206-8|journal=Animal Cognition|language=en|volume=12|issue=2|pages=405–407|doi=10.1007/s10071-008-0206-8|pmid=19115068|s2cid=7412863|issn=1435-9448}}