Mothers-to-be show their belly paintings in Hefei, east China's Anhui province on May 8, 2020. (Photo by Rex Features/Shutterstock/China Stringer Network)

A villager attends a spring ploughing ceremony in Jiaru Village, Gurong Town, Lhasa, southwest China's Tibet Autonomous Region, March 16, 2020. Traditional spring ploughing ceremonies took place in Tibet's major cultivation areas on Monday to pray for a year with good harvests. (Photo by Zhan Yan/Xinhua News Agency)

A citizen rides in smog on December 20, 2016 in Jinan, Shandong Province of China. Air quality index (AQI) readings exceeded 400 and some schools have suspended classes in Jinan. (Photo by VCG/VCG via Getty Images)

Haitians dressed in costumes dance during the Haitian National Carnival in Jacmel, Haiti, 19 February 2017. Locals and foreigners gathered to enjoy the colorful carnival in which parades are full of art, music and dance. (Photo by Bahare Khodabande/EPA)

A male elephant named Mahadevan is tied in a truck as he is being transported for an annual temple festival in Kochi, India, March 10, 2020. (Photo by Sivaram V/Reuters)

Israelis in costumes spray water on each other during the annual Tel Aviv Water War on Hbima Square in Tel Aviv, Israel,10 July 2015. The annual water fight is on his 11th edition. (Photo by Abir Sultan/EPA)

Youths parade wearing World War Two uniforms during the Independence Day celebrations in Gdansk November 11, 2014. (Photo by Lukasz Glowala/Reuters/Agencja Gazeta)

A villager dries chillies on September 1, 2020 in Bijie, Guizhou Province of China. (Photo by VCG/VCG via Getty Images)