A pair of Pacific white-sided dolphins meet the public at Chongqing’s Andover Ocean Park, Aug. 7, 2019. The species can live up to 30 years on average, and the young pair at the park are just one-and-a-half years old. They are the first Pacific white-sided dolphins to call the city home. (Photo: China News Service/Chen Chao)

A pair of Pacific white-sided dolphins meet the public at Chongqing’s Andover Ocean Park, Aug. 7, 2019. The species can live up to 30 years on average, and the young pair at the park are just one-and-a-half years old. They are the first Pacific white-sided dolphins to call the city home. (Photo: China News Service/Chen Chao)

A pair of Pacific white-sided dolphins meet the public at Chongqing’s Andover Ocean Park, Aug. 7, 2019. The species can live up to 30 years on average, and the young pair at the park are just one-and-a-half years old. They are the first Pacific white-sided dolphins to call the city home. (Photo: China News Service/Chen Chao)

A pair of Pacific white-sided dolphins meet the public at Chongqing’s Andover Ocean Park, Aug. 7, 2019. The species can live up to 30 years on average, and the young pair at the park are just one-and-a-half years old. They are the first Pacific white-sided dolphins to call the city home. (Photo: China News Service/Chen Chao)