Giant Panda Updates [132]

news
Updated on January 22, 2026

We would like to announce the following about the two Giant Panda Xiao Xiao and Lei Lei, who were born at Ueno Zoo on June 23, 2021.

Xiao Xiao's latest news

Xiao Xiao's health is good. Since mid-October, it had been observed that the fur on her hind legs was gradually getting shorter, but her condition is improving.

The animal is being kept indoors all day for quarantine procedures, and there are no particular abnormalities in its feeding or behavior; it is in good condition.

We primarily feed them bamboo such as Moso bamboo, Shino bamboo, and Madake bamboo, and supplement their diet with panda dumplings, carrots, and apples as needed.

Xiao Xiao has been undergoing Eurasian Moorhen training (*) since July 16, 2023. Through repeated training, it will become possible to safely manage the panda's health by touching its body with minimal stress. Training was temporarily suspended when Ri Ri and Shin Shin went into quarantine, but resumed on October 25, 2024, after their return to China. Currently, in addition to continuing training in blood pressure measurement and blood sampling necessary for health monitoring, she has undergone X-rays and administration of deworming medication since the start of quarantine.

Eurasian Moorhen Training
Training animals to behave spontaneously for the purposes of healthy animal husbandry and safe work for humans

Physical examination and measurements

Health condition

Good

sex

Good

body weight

124g (Measurement date: June 23, 2021, 0 days old)
104.1kg (Measurement date: December 18, 2025, 1639 days old)
102.8 kg (Measurement date: January 19, 2026, 1671 days old)

シャオシャオ(1671日齢) (撮影日:2026年1月19日)
Xiao Xiao (1671 days old)
(Photo taken on January 19, 2026)
シャオシャオ(1671日齢) (撮影日:2026年1月19日)
Xiao Xiao (1671 days old)
(Photo taken on January 19, 2026)
シャオシャオ(1671日齢) (撮影日:2026年1月19日)
Xiao Xiao (1671 days old)
(Photo taken on January 19, 2026)

Rei-Rei's latest news

Lei Lei is in good health.

The animal is being kept indoors all day for quarantine procedures, and there are no particular abnormalities in its feeding or behavior; it is in good condition.

We primarily feed them bamboo such as Moso bamboo, Shino bamboo, and Madake bamboo, and supplement their diet with panda dumplings, carrots, and apples as needed.

Lei Lei has been undergoing Eurasian Moorhen training since July 21, 2023. Like Xiaoxiao, her training was temporarily suspended when Lili and Xinxin began their quarantine, but it resumed on October 26, 2024. Currently, similar to Xiaoxiao, she is continuing training in blood pressure measurement and blood sampling necessary for health monitoring, and has also undergone quarantine, including X-rays and administration of deworming medication.

Physical examination and measurements

Health condition

Good

sex

female

body weight

146g (Measurement date: June 24, 2021, 1 day old)
94.4 kg (Measurement date: December 18, 2025, 1639 days old)
92.4 kg (Measurement date: January 19, 2026, 1671 days old)

Lei Lei (1671 days old) (Photo taken: January 19, 2026)
Ray Ray (1671 days old)
(Photo taken on January 19, 2026)
Lei Lei (1671 days old) (Photo taken: January 19, 2026)
Ray Ray (1671 days old)
(Photo taken on January 19, 2026)
Lei Lei (1671 days old) (Photo taken: January 19, 2026)
Ray Ray (1671 days old)
(Photo taken on January 19, 2026)

Message from Ueno Zoo

This will be the last update we provide on the current status of Giant Panda, which we have been doing since June 12, 2017.

Thank you for your continued readership over the years.

(January 22, 2026)