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Journey to the USA

Gaogao at the San Diego Zoo

On January 14, 2003, Gaogao departed from Chengdu Shuangliu International Airport and arrived at the San Diego Zoo on the evening of January 15. This journey followed after the return of the panda Shishi to China. Throughout the journey, Gaogao was accompanied by research staff and many panda foods, including bamboo and steamed bread. After arriving at the San Diego Zoo, Gaogao underwent a 30-day quarantine time to ensure his health and then met the public.

In October 2018, Gaogao finished his stay in the United States and returned to China at the age of 28, which is equivalent to 98 years in human life. To protect his safety, the San Diego Zoo did not disclose the specific departure time and transportation mode. Considering Gaogao's age and health problems, the zoo “prepared intensely.” Gaogao was trained in advance to be accustomed to staying in a crate and ignoring the noise from the environment. Two staff members accompanied Gaogao throughout the entire trip to provide care and support.

Since returning to China, Gaogao has lived in the China Conservation and Research Center for Giant Pandas in Dujiangyan, Sichuan, which is also his hometown. As of October 2023, he was still there. The experts at the center conducted a physical examination and designed a personalized plan to ensure Gaogao’s well-being. Following a month-long quarantine period, Gaogao met the public in early December 2018.

Health

On May 6, 2014, Gaogao received a one-hour surgery at the San Diego Zoo to have his right testicle removed due to a tumor. The decision was made after considering Gaogao was not at the age for breeding and approved by The Ministry of Forestry for the People’s Republic of China, which is the government sector in charge of the conservation of animals in China. He recovered well—eating and sleeping as usual.

In June 2016, Gaogao’s medical examination indicated that he had pulmonic stenosis, which cannot be completely cured. This result represented a progressive condition from three years earlier when he had been initially diagnosed with a heart murmur. The Zoo provided Gaogao with medication and closely monitored his health.

Mating

On August 19, 2003, Baiyun, a female giant panda at the San Diego Zoo, gave birth to Meisheng. The DNA test showed that Gaogao was Meisheng's father. In Chinese, Mei Sheng means "Born in the U.S.A.", and can also be interpreted as "beautiful life". Meisheng is Gaogao and Baiyun's first child and the first male giant panda born in the United States through natural mating.

On April 9, 2005, the San Diego Zoo announced that Gaogao and Baiyun mated naturally twice in the past two days, and Baiyun became pregnant. They are the first pair of giant pandas in the United States to successfully mate naturally this year. Then, on August 2, 2005, their second cub Sulin, which means "a little bit of something very cute" in Chinese, was born.

From 2003 to 2012, Gaogao and Baiyun produced five babies by natural mating, a prioritized way other than artificial insemination since the latter needs two steps, during both of which two pandas need to be sedated.