A dog dressed in a costume as Greta Thunberg attends the Tompkins Square Halloween Dog Parade in Manhattan in New York City on October 20, 2019. (Photo by Johannes Eisele/AFP Photo)

A police officer reacts to flames during a protest against Chile's government in Santiago, Chile on November 4, 2019. Unrest began in Chile last October 18 with protests against a rise in transport tickets and other austerity measures and descended into vandalism, looting, and clashes between demonstrators and police. Protesters are angry about low salaries and pensions, poor public healthcare and education, and a yawning gap between rich and poor. (Photo by Henry Romero/Reuters)

Police haul a youth to the paddy wagon as an undetermined number of arrest were made in downtown Atlanta, Georgia, February 25, 1971, as police moved in to disperse black youths after windows were broken and rocks and fruit thrown in what officers called “a major disturbance”. (Photo by Charles Kelly/AP Photo)

Children's author and charity fundraiser Chris Green, of Embsay, near Skipton, has been dubbed “Rhino Boy” as he has pledged to run 40 marathons and other events dressed as a Rhino to raise money for Save the Rhino on January 2020. (Photo by South West News Service/Yorkshire Post)

Philadelphia Phillies Ben Francisco reacts after being hit in the head with a pitch by Cincinnati Reds Logan Ondrusek during the MLB National League Division Series baseball playoffs in Philadelphia, Pennsylvania, United States in this October 8, 2010 file photo. (Photo by Tim Shaffer/Reuters)

While most people head for cover at the first sign of a storm, this man runs straight toward it. Storm chaser and father of three Mike Olbinski is addicted to photographing extreme weather and regularly takes on tornadoes and supercell thunderstorms in a bid to capture extraordinary images. The photographer, from Phoenix, often travels hundreds of miles a day to reach the eye of a storm. He first became hooked on the unusual hobby almost a decade ago, following the birth of his daughter. Here: A stunning monsoon sunset coupled with intense lightning creating an amazing scene on August 26, 2017. (Photo by Mike Olbinski/Caters News Agency)

Tahiti, French Polynesia, June 5, 2016: Surfer Courtney Conlogue. ESPN The Magazine's The Body Issue set out seven years ago with one mission: to celebrate and explore the athletic form through powerful images and interviews. The cornerstone of each annual issue is The Bodies We Want photo portfolio, which features roughly 20 of the world's most elite athletes posing nude. (Photo by Steven Lippman for ESPN The Magazine Body Issue)

Hungarian Puli sheep dog, Fee, jumps over a hurdle during a preview for a pedigree dog show in Dortmund on Thursday April 24, 2008. (Photo by Frank Augstein/AP Photo)