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Featured Articles

Photo © Kevin Lee

Reddy, R.B. & Mitani, J.C. (2019) Social relationships and caregiving behavior between recently orphaned chimpanzee siblings Primates doi: 10.1007/s10329-019-00732-1.

Monkey feeding © Yamato Tsuji

Emiko Nishi, Nami Suzuki-Hashido, Takashi Hayakawa, Yamato Tsuji, Bambang Suryobroto, Hiroo Imai (2018) Functional decline of sweet taste sensitivity of colobine monkeys. Primates https://doi.org/10.1007/s10329-018-0679-2


Why leaf-eating Asian monkeys do not have a sweet tooth

Continue Reading in Research News at Springer.com


Snow monkey in the hot spring at the Jigokudani Monkey Park, Nagano (Photo by Kento Mori, 2015 Prizewinner at JMC Photo Contest)

Takeshita RSC, Bercovitch FB, Kinoshita K, Hufman MA (2018) Beneficial effect of hot spring bathing on stress levels in Japanese macaques. Primates doi: 10.1007/s10329-018-0655-x.


Hot Springs Lower Stress in Japan's Popular Bathing Monkeys

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Gao J, Su Y, Tomonaga M, Matsuzawa T (2018) Learning the rules of the rock-paper-scissors game: chimpanzees versus children. Primates doi: 10.1007/s10329-017-0620-0.

Chimpanzees learn rock-paper-scissors

Continue Reading in kyoto-u.ac.jp


Kawakami F, Tomonaga M, Suzuki J (2016) The first smile: spontaneous smiles in newborn Japanese macaques (Macaca fuscata) Primates doi: 10.1007/s10329-016-0558-7.

Smiling baby monkeys and the roots of laughter

Continue Reading in kyoto-u.ac.jp


Photo © Masaki Tomonaga

Sakuraba Y, Tomonaga M, Hayashi M (2016) A new method of walking rehabilitation using cognitive tasks in an adult chimpanzee (Pan troglodytes) with a disability: a case study. Primates Volume 57, Issue 3, pp 403-412.

doi: 10.1007/s10329-016-0541-3.

The story of how a touch screen helped a paralyzed chimp walk again.

Euthanasia does not have to be only option for injured animals

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Matsumoto T, Itoh N, Inoue S, Nakamura M. (2016) An observation of a severely disabled infant chimpanzee in the wild and her interactions with her mother. Primates Volume 57, Issue 1, pp 3-7. doi: 10.1007/s10329-015-0499-6

Wild chimpanzee mother cares for disabled child.

Over 23 months in the Mahale Mountains National Park, Tanzania, a research team from Kyoto University observed how a female chimpanzee cared for her disabled infant. This was the first time that such an infant was observed in the wild, and also the first report of a disabled infant surviving for nearly two years.

Continue Reading in kyoto-u.ac.jp


Photo © Royal Burger's Zoo

Van Hooff, J.A.R.A.M. & Lukkenaar, B. (2015). Captive chimpanzee takes down a drone: tool use toward a flying object, Primates Volume 56, Issue 4, pp 289-292. doi: 10.1007/s10329-015-0482-2.

Chimp vs. Drone

Not on my watch: Chimp swats film crew’s drone

Incident shows that chimps are able to plan ahead and use tools as weapons

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