Antonina Yermokhina, 86, does physical exercises during her daily training session on the embankment of the Yenisei River in the Siberian town of Divnogorsk, Russia November 13, 2017. (Photo by Ilya Naymushin/Reuters)

Participants learn how to survive in the wild, including tips on how to make it through a zombie invastion at a “Zombie First Responder” course March 11, 2012 in Sandy, Oregon. In an intensive 2-day curriculum participants train in everything from wilderness and urban survival, nerf or nerd weaponry, stealth and evasion, and proper zombie “disposal”. (Photo by Natalie Behring/Getty Images)

Valeria Ruiz, 10, from Colombia, does a cartwheel while visiting the U.S. Capitol, as Republican members of the House continue to work towards electing a new Speaker of the House in Washington, U.S., October 9, 2023. (Photo by Kevin Lamarque/Reuters)

Olympic gold medal-winning gymnast Hezly Rivera does a flip before throwing out a ceremonial first pitch before a baseball game between the Texas Rangers and the New York Yankees, Wednesday, September 4, 2024, in Arlington, Texas. (Photo by Jeffrey McWhorter/AP Photo)

A father and son spend all day fishing in Naogaon, northern Bangladesh in the first decade of December 2024, before heading to market to sell their 3kg catch for the equivalent of a few pounds. The vibrant green algae makes conditions difficult but that does not deter them. (Photo by Estiak Ahmed Munna/Solent News)

Guests arrive for the opening ceremony of the 23rd Life Ball in Vienna May 16, 2015. Life Ball is Europe's largest annual AIDS charity event and takes place in Vienna's city hall. The Life Ball is a charity gala to raise money for people living with HIV and AIDS. (Photo by Leonhard Foeger/Reuters)

Danny Santos started photography as a hobby a few years ago, shooting strangers in the streets of Singapore every weekends. He still does that from time to time. Now he juggles between his day job as a graphic designer, and his part-time work as a freelance photographer. (Photo by Danny Santos)

Contrasted against the white flowers in a cotton field, a brown bear is out for a ramble just after midnight in the second decade of July 2023 in Kainuu, Finland, where the sun does not fully set for more than 70 days in the summer months. (Photo by Jane Jeffrey/Animal News Agency)