Participants hold flags during a demonstration lesson that is part of an extracurricular military-patriotic program, which involves weapon training, first aid treatment, camping skills and other courses, in Sevastopol, Crimea on May 19, 2023. (Photo by Alexey Pavlishak/Reuters)

Natalia, 51, a mother of three, serving as a combat medic in the 24th Mechanized Brigade takes part in a field training exercise in an undisclosed location in the eastern region of Ukraine, on March 18, 2025, amid the Russian invasion of Ukraine. (Photo by Roman Pilipey/AFP Photo)

Fans react as Kansas City Chiefs wide receiver Xavier Worthy, right, signs autographs at the team's NFL football training camp Sunday, July 27, 2025, in St. Joseph, Mo. (Photo by Charlie Riedel/AP Photo)

Children watch their classmate pour cold water on herself under the watch of a fitness coach at a local kindergarten in Russia's Siberian city of Krasnoyarsk, March 11, 2015. The program, which also involves sports training and sauna usage, has been practiced by the kindergarten for more than 15 years as they believe it has health benefits and keeps the children fit. Children start pouring cold water on themselves outdoors after about three years of training and undergoing medical tests, and the kindergarten is the only one in the region that practices these exercises, according to employees. (Photo by Ilya Naymushin/Reuters)

Trained by Dutch photographer Ellen van Deelen to hold different musical instruments and pose for the camera, the Roosendaal Rats are considered very talented by their owner. She confesses rats weren’t exactly her favorite creatures, but, after buying these two, she realized they are highly intelligent creatures.

Eight-year-old Niu Dongfang trains at the No. 2 Beijing Shuangqiao School January 13, 2005 in Beijing, China. Most of students in the gymnastics school have to study more than five years from as young as age six before they become athletes. (Photo by Guang Niu/Getty Images)

People board a train at the West Railway Station on January 7, 2012 in Beijing, China. China's railways are bracing themselves as millions of migrant labourers are set to leave cities for their native villages to celebrate the Chinese New Year. (Photo by Lintao Zhang/Getty Images)

Sergeant Andrew Garrett watches K-Dog, a bottlenose dolphin attached to Commander Task Unit 55.4.3, leap out of the water while training near the USS Gunston Hall March 18, 2003 in the Persian Gulf. (Photo by U.S. Navy/Getty Images)