In this photo taken on Friday, July 14, 2017, a student at a paramilitary camp for children calls the rank to attention outside Kiev, Ukraine. As the deadly conflict in eastern Ukraine entered its third year, some parents in Ukraine are anxious to make sure their children are ready to fight it, instead of swimming and playing volleyball. (Photo by Efrem Lukatsky/AP Photo)

In this April 13, 2018 photo, motorcycle taxi driver Ricardo Medina, 60, transports vegetable vender Rigoberto Herrera Mendez, left, and coconut vendor Osvaldo Ochoa in Campo Florido, east of Havana, Cuba. The three men expressed hope that new government leadership will improve things, saying the country cannot move backwards. “We survive life with our work”, said Medina. (Photo by Ramon Espinosa/AP Photo)

Final-year student Alina Repkina prepares for a livestream of the Last Bell ceremony for school leavers at secondary school No 11 in Rostov-On-Don, Russia on May 30, 2020. It is the first time in Russia that such ceremonies have been held via video link due to the coronavirus lockdown restrictions. (Photo by Valery Matytsin/TASS)

Majesty Davis, 3, cries while visiting Santa Claus, who sits behind a plexiglass divider due to the coronavirus disease (COVID-19) pandemic, at the Willow Grove Park Mall in Willow Grove, Pennsylvania, U.S. November 14, 2020. (Photo by Mark Makela/Reuters)

Aerial view of Christ The Protector Statue at sunrise on April 21, 2021 in Encantado, Brazil. The statue under construction in Encantado, Southern Brazil, will be named Cristo the Protector and will surpass the iconic Christ The Redeemer of Rio de Janeiro by five meters. Made of steel and concrete, it will stand 43 meters including its pedestal, and become the third-tallest statue of Jesus Christ in the world. (Photo by Buda Mendes/Getty Images)

Third place: the rear leg, claw and respiratory trachea of a louse (Haematopinus suis). (Photo by Frank Reiser/Nassau Community College/Nikon Small World Photomicrography 2021)

Wrestlers compete during a traditional Sindhi Malakhra wrestling during a local tournament in Pakistan's port city of Karachi on December 3, 2021. (Photo by Rizwan Tabassum/AFP Photo)

Young Haitian migrants hang out in the Batey La Lima community, an impoverished community surrounded by a massive sugarcane plantation in the coastal city of La Romana, Dominican Republic, Wednesday, November 17, 2021. As the rest of the world closes its doors to Haitian migrants, the country that shares an island with Haiti also is cracking down in a way that human rights activists say hasn’t been seen in decades. (Photo by Matias Delacroix/AP Photo)