Latest information

2026.2.15.
  Chimpanzee : Puteri died.

2026.1.9.
  Chimpanzee : Ai died.

2025.12.23.
  Chimpanzee : Yoshimi was moved from the previous facilities.

2025.12.21.
  Gibbon : Kapuas died.

2025.12.17.
  Gibbon : Haru-chan died.

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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

Aiko Ode, Ikuma Adachi & Tomoko Imura(2026) Visual preference for previously familiar faces in Chimpanzees (Pan troglodytes)
*Scientific Reports*, 16, Article number: 8646
https://doi.org/10.1038/s41598-026-40862-3

Yusuke Hamazaki, Hiroto Akuta, Hikaru Suzuki, Hideyuki Tanabe, Tsubasa Suzuki, Kouki Inoue, Kenji Ichiyanagi, Takuya Imamura, Masanori Imamura.(2026) Generation and transcriptome profiling of bonobo induced pluripotent stem cells using stealth RNA vectors: a tripartite comparative study with humans and chimpanzees
*BMC Genomics*, 27:29
https://doi.org/10.1186/s12864-025-12400-4

Satoshi Hirata(2026) A hundred years of chimpanzee care in Japan
*Primates*, Published online: 19 February 2026
https://doi.org/10.1007/s10329-026-01238-3

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.