A boy jumps into a pool of mud during the traditional “Bloco da Lama” or “Mud Street” carnival party, in Paraty, Brazil, Saturday, February 25, 2017. Legend has it the “bloco” was born in 1986 after local teens hiking in a nearby mangrove forest smeared themselves with mud to discourage mosquitoes and then wandered through Paraty. The party grew year after year, but revelers eventually were banned from parading in the colonial downtown after shopkeepers complained pristine white walls were stained with the hard-to-remove mud. (Photo by Mauro Pimentel/AP Photo)
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)
This picture taken on October 20, 2016 shows students practising wushu at the Tagou martial arts school in Dengfeng. China is investing hugely in football training and has vowed to have 50 million school- age players by 2020, as the ruling Communist party eyes “football superpower” status by 2050. (Photo by Nicolas Asfouri/AFP Photo)
A boy, who came with the humanitarian transport of children from Ukrainian public orphanages following the Russian invasion of Ukraine, reacts as he has breakfast at the Hotel Ossa near Rawa Mazowiecka, Poland on March 5, 2022. (Photo by Kacper Pempel/Reuters)
A child coated in silver body paint, smiles during the “Loucura Suburbana”, or Suburban Madness pre-Carnival parade, in Rio de Janeiro, Brazil, Thursday, February 8, 2024. (Photo by Bruna Prado/AP Photo)
A boy attends the “Bloco da Lama” (Block of Mud) group during the carnival festivities, in Paraty, Brazil on February 11, 2024. (Photo by Pilar Olivares/Reuters)