These friends took a tumble after sharing a hug in Leeds in northern England on May 17, 2021, as Covid-19 lockdown restrictions ease. (Photo by London News Pictures)

Kaden Bringsplenty brings his horse to the starting line as Native Americans from all over the United States participate in an Indian relay race over Memorial Day weekend at the Osage County Fairgrounds in Pawhuska, Oklahoma, U.S. May 30, 2021. (Photo by Stephanie Keith/Reuters)

A Romanian honor guard soldier stands still as three military aircraft carriers are crossing the sky during a ceremony held at the Unknown Soldier Memorial, in Carol I Park, on the occasion of the Heroes' Day commemoration, in Bucharest, Romania, 10 June 2021. (Photo by Robert Ghement/EPA/EFE)

A girl attends a performance hosted by the Ministry of the Interior that includes police, border guards, and rescuers celebrating International Children's Day in Kyiv, Ukraine on June 1, 2021. (Photo by Gleb Garanich/Reuters)

Pigeon fancier Yonisbel Santana poses for a photo at his rooftop in Havana, Cuba, May 18, 2021. Havana's pigeon keepers crane out of a window, intently watching the grey birds take flight. Mostly staying indoors due to the country's worst outbreak of COVID-19 since the coronavirus pandemic began in March last year, Cubans are increasingly breeding pigeons as a form of escape. (Photo by Alexandre Meneghini/Reuters)

A woman passes Members of historical clubs dressed in the uniform of French soldiers during ceremony of repatriation of the remains of French General Charles-Etienne Gudin de la Sablonniere, participant in the French Revolutionary wars and Napoleonic wars, to France in Moscow airport Vnukovo-3, Russia, 13 July 2021. (Photo by Sergei Ilnitsky/EPA/EFE)

A brown bear cub by the Khailyulya River in north-east Kamchatka, Russia on July 24, 2021. (Photo by Yuri Smityuk/TASS)

A British RAF Typhoon aircraft escorts a C130 transport plane on its way to Jordan for an airdrop of paratroopers from the U.K.'s 16th Air Assault Brigade as part of an exercise conducted jointly with Jordanian soldiers on Wednesday, June 23, 2021. (Photo by Petros Karadjias/AP Photo)