Momotaro with members of his family at Kyoto City Zoo

Kyoto, Japan · A living family history

The Momotaro
Family

One silverback, one Kyoto-born matriarch, and three sons. A family story spanning five generations.

Meet them
05core family
20gorillas in Japan
06institutions

Five gorillas. One remarkable family story.

Momotaro was born in Tokyo. Genki belongs to Kyoto’s historic home-grown line. Their sons Gentaro, Kintaro, and Santaro connect the story to Japan’s future gorilla population.

Meet the family

Choose a name for a source-backed biography, a year-by-year life timeline, and a dated photo archive. Every major chapter links to the zoo record behind it.

Momotaro at the keeper window in 2026
モモタロウ
202601 / 08
Life archive

Father · silverback

Momotaro

The family’s silverback and the gorilla at the center of this story. Momotaro is Japanese-born, unusually energetic, and known for turning everyday objects into a project.

Born
July 3, 2000
Birthplace
Ueno Zoo, Tokyo
Lives now
Kyoto City Zoo

The full story

Biography

Momotaro’s route to Kyoto was unusually well traveled. Born to Biju and Momoko at Ueno Zoo, he moved with his mother to Chiba as a two-year-old, returned to Ueno in 2008, and then transferred to Kyoto in 2010. The move paired a young Japanese-born male with Genki, an experienced female from Kyoto’s long-running gorilla line.

His restless curiosity became part of his public personality: zoo records describe a gorilla who runs, climbs, tumbles, drums on walls, and notices people moving outside the enclosure. Keepers also describe a more tender adult behind the spectacle: patient, kind, slightly awkward, and willing to play through the keeper window. With Genki, he has raised three sons and grown from an energetic newcomer into the steady silverback of a multigenerational family.

Japanese-born3 sonsKyoto since 2010

Life archive

Timeline

8 chapters
2000
Born at Ueno Zoo

Momotaro was born on July 3 to Biju and Momoko and was raised by his mother.

The family tree

Two histories converge in Kyoto. The highlighted generation is the family living today.

Genki’s Kyoto line

Jimmy+Be-Be
Makk · 1970–1997+Hiromi · c. 1973–2008
Genki · b. 1986

Older brother: Kyotaro · 1982–1992

Momotaro’s line

Bitam+Juju
Biju · 1987–1999+Momoko · b. 1983
Momotaro · b. 2000

Half-siblings: Komomo, Momoka, Riki, Sumomo

Momotaro+Genki
Gentaro2011 · Ueno
Kintaro2018 · Kyoto
Santaro2025 · Kyoto

Twenty faces.
Six homes.

Choose any portrait to jump directly to that individual and their current institution.

Every gorilla in Japan

20 gorillas · 6 institutions · July 2026

Kyoto04

Kyoto City Zoo

The Momotaro family’s home base. Gentaro moved from Kyoto to Ueno in October 2025.

Portrait of Momotaro
Male · 2000-07-03Momotaro

Silverback and father

Portrait: Kyoto City Zoo
Open location

A tiny population, managed together.

Every gorilla in Japan is a critically endangered western lowland gorilla. Transfers between Kyoto, Tokyo, Nagoya, and Chiba are coordinated to preserve genetic diversity and create compatible future groups.

Zoo records over internet lore.

Dates and parentage come primarily from Japan’s Great Ape Information Network, checked against official zoo announcements. Santaro’s official Kyoto birth record brings the current total to 20. The 2025 transfers are shown at their confirmed destinations.