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

Xiaoxiao's health is good.

Due to the continued high temperatures, we are mainly keeping them indoors in an air-conditioned environment. There are no particular abnormalities in their feeding or behavior, and they are 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. In addition, we occasionally give them carrots and apples in ice as environmental enrichment (*1), and they respond well to it.

Xiao Xiao has been undergoing Eurasian Moorhen training (*2) 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 it resumed on October 25, 2024, after they were returned to China. Currently, as with last month, training is underway to keep the panda's mouth open.

*1 Environmental enrichment
Efforts to enable animals to live healthier lives, both physically and mentally, within limited living environments.

*2 Eurasian Moorhen training
Training animals to exhibit spontaneous behavior is aimed at ensuring their healthy living and safe working conditions for humans.

Physical examination and measurements
Health condition: Good
Gender: Male
Weight: 124g (Measurement date: June 23, 2021, 0 days old)
99.2 kg (Measurement date: July 17, 2025, 1485 days old)
97.7kg (measurement date: August 21, 2025, 1520 days old)


Xiaoxiao (1524 days old)
(Date of photo: August 25, 2025)

Rei-Rei's latest news

Ray Ray is in good health.

Due to the continued high temperatures, we are mainly keeping them indoors in an air-conditioned environment. There are no particular abnormalities in their feeding or behavior, and they are 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. We also occasionally give them carrots and apples in ice as environmental enrichment, and they respond well to it.

Lei Lei has been undergoing Eurasian Moorhen training since July 21, 2023. Like Xiaoxiao, her training was temporarily suspended when Li Li and Xin Xin began their quarantine, but it resumed on October 26, 2024. Currently, she is continuing the training from last month to be able to maintain a supine position.


Physical examination and measurements
Health condition: Good
Gender: Female
Weight: 146g (measured on June 24, 2021, 1 day old)
92.9kg (Measurement date: July 17, 2025, 1485 days old)
93.5kg (Measurement date: August 21, 2025, 1520 days old)


Lei Lei (1524 days old)
(Date of photo: August 25, 2025)

[Video] No sound

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*The next update on the Giant Panda is scheduled for Thursday, September 18, 2025.

◎Previous News
・ News up to 2024
・ We can now measure the blood pressure of Xiaoxiao and Leilei. (January 18, 2025)
・ Giant Panda latest news [120] (January 23, 2025)
・ Giant Panda latest news [121] (February 27, 2025)
・ The way you view Giant Panda will change from March 11, 2025. (March 11, 2025)
・ Giant Panda latest news [122] (March 27, 2025)
・ Giant Panda latest news [123] (April 24, 2025)
・ We are changing the way we view Giant Panda (starting May 13th). (May 7, 2025)
・ Recent news on Giant Panda [124] (May 29, 2025)
・ Giant Panda latest news [125] (June 26, 2025)
・ Recent news on Giant Panda [126] (July 24, 2025)


(August 28, 2025)