Latest information

2026.7.13.
  Chimpanzee : Gunta died.

2026.7.3.
  Chimpanzee : Jira died.

2026.5.26.
  Chimpanzee : Nanako gave birth to a baby(gender undetermined).

2026.5.18.
  Chimpanzee : Plum was moved from the previous facilities.

2026.5.18.
  Chimpanzee : Peach was moved from the previous facilities.

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Latest Journa

Takeshi Nishimura, Isao T. Tokuda, Shigehiro Miyachi, Jacob C. Dunn, Christian T. Herbst, Kazuyoshi Ishimura, Akihisa Kaneko, Yuki Kinoshita, Hiroki Koda, Jaap P. P. Saers, Hirohiko Imai, Tetsuya Matsuda, Ole Næsbye Larsen, Uwe Jürgens, Hideki Hirabayashi, Shozo Kojima, W. Tecumseh Fitch(2022) Evolutionary loss of complexity in human vocal anatomy as an adaptation for speech
*Science*, Vol 377, Issue 6607, pp. 760-763
https://doi.org/10.1126/science.abm1574

Kristin Havercamp, Koshiro Watanuki, Masaki Tomonaga, Tetsuro Matsuzawa, Satoshi Hirata(2019) Longevity and mortality of captive chimpanzees in Japan from 1921 to 2018
*Primates*, 60: 525-535
https://doi.org/10.1007/s10329-019-00755-8

Hirata S, Itahara A, Goppold N, Vispute A, Yinon O.(2026) Chimpanzees link past actions and later outcomes despite intervening irrelevant events in a cognitive task.
*Learn Behav*
https://doi.org/10.3758/s13420-026-00722-6

Hirata S, Nogami E, Udono T, Fujisawa M, Tanaka Y.(2026) Direct-Acting Antiviral Therapy and Hepatocellular Carcinoma in Captive Chimpanzees With Long-Standing Chronic Hepatitis C Virus Infection.
*J Med Virol*, 98(7) e71074
https://doi.org/10.1002/jmv.71074

Małszycki M, Martina L, Ilık İA, Salgado Figueroa D, Dasgupta N, Çoşar MF, Kim KT, Carraco G, Fauler B, Meierhofer D, Mielke T, Imai H, Alev C, Ay F, Aktaş T.(2026) Nuclear speckles enable processing of RNA from GC-rich isochores.
*Cell*, Vol 2 , Issue 7
https://doi.org/10.1016/j.cell.2026.01.011

Results of GAIN

There are 102 species of nonhuman primates kept in the zoos and other facilities in Japan.

The count is at the point of March 31 2015 and excludes the hybrids and miscellaneous individuals.