Some of London's telephone operators and engineers, trying out their gas masks at the anti-gas civilian training centre in Gloucester, where they were taught how to deal with gas attacks. (Photo by Harry Todd/Fox Photos/Getty Images). 13th February 1937

Fascist youth, both boys and girls, in the rebel uniforms in Irun after the city had been captured by the rebels. (Photo by Maeers/Fox Photos/Getty Images). 13th November 1936

A group of Japanese schoolgirls marching in formation during a school visit to the third regiment to experience the soldier's way of life. (Photo by Fox Photos/Getty Images). Circa 1938

Workers feed water to a Slow Loris at the Guangdong Wild Animal Rescue Centre on December 21, 2004 in Guangzhou, China. Many protected species at the Centre have been seized by Police from illegal traders. (Photo by China Photos/Getty Images)

In this photo illustration a plastic carrier bag is blown along the road by the wind on March 4, 2008 in Birmingham, England. (Photo illustration by Christopher Furlong/Getty Images)

Heugh Breakwater by Caroline Walker. Winner in the Coastal Views category. (Photo by Caroline Walker/Sea View Photography Competition 2020)

Woman carrying luggage walks along a railway track on the outskirts of Mumbai, India on November 12, 2020. (Photo by Francis Mascarenhas/Reuters)

A farmer arranges vegetable at a greenhouse on January 29, 2021 in Hukou County, Jiangxi Province of China. (Photo by Zhang Yu/VCG via Getty Images)