North Korean leader Kim Jong Un is hugged by children during his visit to Samjiyon County in this undated photo released by North Korea's Korean Central News Agency (KCNA) in Pyongyang November 28, 2016. (Photo by Reuters/KCNA)

The battle by Jose Garcia, US. Category: bird behaviour. A great white heron (Ardea herodias occidentalis) fighting a green snake in the Florida Everglades. The fight lasted for nearly 20 minutes with the heron having to release its prey. (Photo by Jose Garcia/2017 Bird Photographer of the Year Awards)

This picture taken on October 10, 2020 and released from North Korea's official Korean Central News Agency (KCNA) on October 11, 2020 shows the military parade during a ceremony to mark the 75th anniversary of the Workers' Party of Korea at Kim Il-sung Square of Pyongyang. (Photo by KCNA via KNS/AFP Photo)

This handout photo taken on March 8, 2021 and released on March 9 by the Myitkyina News Journal shows a nun pleading with police not to harm protesters in Myitkyina in Myanmar's Kachin state, amid a crackdown on demonstrations against the military coup. (Photo by Myitkyina News Journal/Handout via AFP Photo)

A cooling tower is seen under mechanical demolition in Binzhou, Shandong Province, China, July 13, 2016. (Photo by Reuters/China Daily)

A sandstorm hits the city of Zhangye in Gansu province, China on November 27, 2018. (Photo by Reuters/China Stringer Network)

Two sheep fight in a competition in Zhangjiakou, Hebei province, China on August 1, 2017. (Photo by Reuters/China Stringer Network)

A Beijing Opera performer dances for a show by designer Hao Weimin at China Fashion Week, China, October 28, 2019. (Photo by Jason Lee/Reuters)