An aerial drone photo taken on Dec. 13, 2025 shows a penguin parade event at Harbin Polarland in Harbin, capital of northeast China's Heilongjiang Province. Harbin Polarland held a penguin parade with 100 Antarctic penguins on Saturday. (Xinhua/Zhang Tao)

People watch a penguin parade event at Harbin Polarland in Harbin, capital of northeast China's Heilongjiang Province, Dec. 13, 2025. Harbin Polarland held a penguin parade with 100 Antarctic penguins on Saturday. (Xinhua/Zhang Tao)

Penguins are pictured during a penguin parade event at Harbin Polarland in Harbin, capital of northeast China's Heilongjiang Province, Dec. 13, 2025. Harbin Polarland held a penguin parade with 100 Antarctic penguins on Saturday. (Xinhua/Zhang Tao)

Penguins are pictured during a penguin parade event at Harbin Polarland in Harbin, capital of northeast China's Heilongjiang Province, Dec. 13, 2025. Harbin Polarland held a penguin parade with 100 Antarctic penguins on Saturday. (Xinhua/Zhang Tao)

A penguin is pictured during a penguin parade event at Harbin Polarland in Harbin, capital of northeast China's Heilongjiang Province, Dec. 13, 2025. Harbin Polarland held a penguin parade with 100 Antarctic penguins on Saturday. (Xinhua/Zhang Tao)

People watch a penguin parade event at Harbin Polarland in Harbin, capital of northeast China's Heilongjiang Province, Dec. 13, 2025. Harbin Polarland held a penguin parade with 100 Antarctic penguins on Saturday. (Xinhua/Zhang Tao)

An aerial drone photo taken on Dec. 13, 2025 shows a penguin parade event at Harbin Polarland in Harbin, capital of northeast China's Heilongjiang Province. Harbin Polarland held a penguin parade with 100 Antarctic penguins on Saturday. (Xinhua/Zhang Tao)

A penguin is pictured during a penguin parade event at Harbin Polarland in Harbin, capital of northeast China's Heilongjiang Province, Dec. 13, 2025. Harbin Polarland held a penguin parade with 100 Antarctic penguins on Saturday. (Xinhua/Zhang Tao)

Penguins are pictured during a penguin parade event at Harbin Polarland in Harbin, capital of northeast China's Heilongjiang Province, Dec. 13, 2025. Harbin Polarland held a penguin parade with 100 Antarctic penguins on Saturday. (Xinhua/Zhang Tao)

Penguins are pictured during a penguin parade event at Harbin Polarland in Harbin, capital of northeast China's Heilongjiang Province, Dec. 13, 2025. Harbin Polarland held a penguin parade with 100 Antarctic penguins on Saturday. (Xinhua/Zhang Tao)