A rail worker fixing a fog warning notice at South Woodford Railway Station in Essex. (Photo by H. F. Davis/Topical Press Agency/Getty Images). 20th October 1938

A worker works at a plant of Hyundai Motor in Asan, South Korea, January 27, 2016. (Photo by Kim Hong-Ji/Reuters)

A South Sudanese model applies make-up during the Festival of Fashion and Arts for Peace in Juba August 9, 2014. (Photo by Andreea Campeanu/Reuters)

A curious leopard cub toys with a camera at MalaMala Game Reserve in Mpumalanga Province, South Africa. (Photo by Barcroft Media)

Cats gather in front of a house damaged by shelling in the town of Dokuchayevsk, south of Donetsk, February 12, 2015. (Photo by Maxim Shemetov/Reuters)

A female brown bear with cubs fishing on Lake Kronotskoye as part of the South Kamchatka, Russia on Sanctuary, August 13, 2017. (Photo by TASS/Barcroft Images)

A member of the South African National Defense Force (SANDF) stands on a military vehicle during a joint South African Police Services (SAPS) and SANDF patrol on day 31 of the national lockdown as a result of the ongoing coronavirus COVID-19 pandemic in Johannesburg, South Africa, 26 April 2020. The patrol was in the high density areas of Hillbrow and Yoeville where civilians are still breaking the strict lockdown rules. Those that where breaking the rules where arrested. South Africa's Stage 5 lockdown is due to end 30 April 2020 when stage 4 will be implemented. (Photo by Kim Ludbrook/EPA/EFE)

Women participate during the Mr. Olympia Amateur South America bodybuilding competition in Medellin, Colombia, February 19, 2017. (Photo by Fredy Builes/Reuters)