Some bats in the forested area of Guapiles, Costa Rica, 21 April 2020. (Photo by Jeffrey Arguedas/EPA/EFE)

Underground dancers dressed in Spiderman costumes perform in the subway of Saint Petersburg late on May 21, 2021. (Photo by Olga Maltseva/AFP Photo)

An Afghan boy carrying empty plastic cans, walks along a street in Kabul on December 21, 2023. (Photo by Wakil Kohsar/AFP Photo)

Palestinians walk at the site of Israeli strikes on houses, in Jabalia refugee camp in the northern Gaza Strip on November 21, 2023. (Photo by Abed Sabah/Reuters)

A South Sudanese People Liberation Army (SPLA) soldier patrols the streets in Malakal on January 21, 2014. (Photo by Harrison Ngethi/AFP Photo)

A woman walks inside a building in downtown Havana, Cuba April 21, 2016. (Photo by Alexandre Meneghini/Reuters)

A ring-tailed lemur sunbakes at Melbourne Zoo in Melbourne, Victoria, Australia on December 21 2016. (Photo by Julian Smith/EPA)

A mahout bathes his elephant in the river Sabarmati on a hot summer day in Ahmedabad, India May 21, 2017. (Photo by Amit Dave/Reuters)