Sumatran Tiger was born at Ueno Zoo on Friday, April 28, 2023. This is the first birth of Sumatran Tiger at Ueno Zoo in 26 years.

Newborn child (Date of photo: May 17, 2023)	Sumatran Tiger "Mimpi" (Date of photo: August 31, 2022)

Date of birth Friday, April 28, 2023

Number of animals and sex Two pups (one female; the other was stillborn, sex unknown)

Parents Mother Mimpi was born on August 4, 2014, at Yokohama Zoological Gardens Zoorasia.
Visited the park on November 24, 2020
father Blanc was born on May 21, 2013, at Yagiyama Zoological Park in Sendai City.
Visited the park on December 3, 2018.

background
Ueno Zoo is working with other zoos to promote the breeding of the rare Sumatran Tiger. On December 3, 2018, they received a male named "Bran" from Misaki Park in Misaki-cho, Sennan-gun, Osaka Prefecture (which closed in March 2020), and on November 24, 2020, they received a female named "Mimpi" from Yokohama Municipal Nogeyama Zoo, both through a breeding loan (*).

The two tigers were placed together in January of this year for breeding purposes, and mating was observed. The cub was born on April 28th. This is the first birth of Sumatran Tiger cub at Ueno Zoo in 26 years, since 1997.

※About breeding loans
This is an animal loan agreement for the purpose of breeding. By transferring animals between zoos, the purpose is to form new pairs and contribute to breeding.

Current situation
The mother, "Mimpi," is a first-time mother, and initially, she was seen in a nursing position with her baby latching onto her nipple. However, she gradually stopped nursing, so now animal keeper are assisting with nursing in an effort to maintain the mother-child relationship.

The calf is being fed formula, but the mother has also been seen licking and caring for it, and the calf's weight is increasing steadily, and it is getting stronger day by day. Its weight measured on Wednesday, May 17th was 1,714g.

Release date The opening date will be announced on Ueno Zoo official website as soon as it is decided.

Current status of animal care at our zoo (as of May 18, 2023)
5 individuals (1 male, 4 females) *Including the offspring born this time

Domestic breeding situation (as of December 31, 2022)
7 zoos/aquariums, 18 animals (8 males, 10 females)
Source: 2022 Sumatran Tiger Domestic Pedigree Registry [Japanese Association of Zoos and Aquariums]


[Video] Childbirth (April 28, 2023)


[Video] Mother and child living together (May 17, 2023)

• Sumatran Tiger "Bran" will be arriving from Misaki Park (November 22, 2018)
-Mimpi, Sumatran Tiger, will be arriving from Nogeyama Zoo (November 17, 2020)

(May 18, 2023)
(May 18, 2023: Added video showing them living together)