Wrestlers perform during an all-female wrestling event on International Women's Day at the Resistance Gallery in Bethnal Green on March 8, 2019 in London, England. (Photo by Jack Taylor/Getty Images)

A truck driver, butcher and firefighter are some of the subjects in the latest project by the photographer Chris Crisman. This series portrays women at work and focuses on occupations traditionally seen as male dominated. Here: Firefighter Mindy Gabriel, from Upper Arlington, Ohio. (Photo by Chris Crisman/The Guardian)

In this photo illustration a package of Nicotine Gum, which is advertised as helping people stop smoking cigarettes, is seen on January 10, 2012 in Miami, Florida. A study published in the journal Tobacco Control on Monday, reported that the nicotine alternatives, like Nicotine Gum, have no lasting effect on people trying to quit their smoking habit. (Photo illustration by Joe Raedle/Getty Images)

Young Ian Archibald ponders the consequences of a complex critical study of beauty contestants during the Miss TV Times finals in London. (Photo by Central Press/Getty Images). 30 July 1971

A model showcases lingerie during a lingerie show on International Women's Day at a shopping mall on March 8, 2011 in Qingdao, Shandong Province of China. The official theme of International Women's Day 2011 is “Equal access to education, training and science and technology: Pathway to decent work for women”. (Photo by ChinaFotoPress/Getty Images). QINGDAO, CHINA – MARCH 08 2011

Aline, along with other rangers and park staff visit the gorilla's in the parks Mikeno sector, where the majority of the gorilla families live in Virunga National Park. Therefore there has been a surge of poaching and violence in the area. For the first time, women have taken up the most dangerous job in wildlife, becoming para-military rangers at the Virunga National Park in DR Congo. (Photo by Monique Jaques)

Fatima Rezai, 21, a female officer from the Afghan National Army (ANA) practices with a punch bag during an exercise session at at the Kabul Military Training Centre (KMTC) in Kabul, Afghanistan October 23, 2016. (Photo by Mohammad Ismail/Reuters)

Masooma Alizada (L) and Frozan Rasooli (R), members of Afghanistan's Women's National Cycling Team prepare a bicycle before training on the outskirts of Kabul February 20, 2015. Afghanistan's Women's National Cycling Team has been breaking new ground for women's sports and pushing the boundaries of what is – and is not – acceptable for young women in the conservative Muslim country. (Photo by Mohammad Ismail/Reuters)