A girl shows a fish she has caught in a bare- hand fish catching contest held in Housangyuan Village of Lyutan Township Wuyi County, east China' s Zhejiang Province, September 23, 2018. People across China hold various activities to celebrate the country' s first Farmers' Harvest Festival, which falls on Sept. 23 this year. (Photo by Zhang Jiancheng/Xinhua News Agency/Barcroft Images)

A Myanmar worker prepares corn for drying in a field during the harvest in Naypyitaw, Myanmar, 23 August 2018. (Photo by Hein Htet/EPA/EFE)

University students demonstrate against the crisis in the public education, budget cuts and a tax reform project announced by the government of Ivan Duque in Medellin, Colombia on December 13, 2018. (Photo by Joaquín Sarmiento/AFP Photo)

A young Sandinista guerrilla takes aim with his 45 pistol as he stands waiting to do combat with the Nicaraguan National Guard in Managua June 23, 1979. The guerrillas still occupy major parts of the Capitol City. (Photo by McLendon/AP Photo)

Police detain an alleged thief in Lagos' Tafawa Balewa Square where the official People's Democratic Party (PDP) opposition party is holding a rally on February 12, 2019. Nigerians will cast their ballots on February 16 in presidential and legislative elections. The presidential contest will see incumbent Muhammadu Buhari seek to win a second four-year term against former vice president Atiku Abubakar in what is expected to be a close race. (Photo by Luis Tato/AFP Photo)

This handout photograph taken and released by Limex Images for Red Bull on February 6, 2019 shows France's Nicolas Ivanoff flying over the skyline prior to the first stage of the Red Bull Air Race World Championship in Abu Dhabi, United Arab Emirates. (Photo by Predrag Vuckovic/AFP Photo)

Portraits single nominee: Dakar fashion, by Finbarr O’Reilly. Curious residents and a street vendor selling material look on as models Diarra Ndiaye, Ndeye Fatou Mbaye and Malezi Sakho wear outfits by the Senegalese designer Adama Paris in the Medina neighbourhood of Senegal’s capital, Dakar. (Photo by Finbarr O’Reilly/World Press Photo 2019)

A man helps a woman through a flooded neighbourhood in the aftermath of Cyclone Kenneth, in Pemba, Mozambique, April 28, 2019. (Photo by Mike Hutchings/Reuters)