Russian soldiers write home while serving on the Eastern Front during World War I, circa 1915. (Photo by Hulton Archive/Getty Images)

In this image provided by Maine State Police, emergency crews work to remove a tractor-trailer hauling 15 million bees to be used in pollinating the state's blueberry crops after it overturned on Interstate-95, Thursday evening, May 10, 2024, in Clinton, Maine. The driver was taken to a hospital and most of the bees were contained, officials said. (Photo by Maine State Police via AP Photo)

Natalia, 51, a mother of three, serving as a combat medic in the 24th Mechanized Brigade takes part in a field training exercise in an undisclosed location in the eastern region of Ukraine, on March 18, 2025, amid the Russian invasion of Ukraine. (Photo by Roman Pilipey/AFP Photo)

Chester Zoo in the second decade of August 2025 has welcomed a pair of tiny golden lion tamarins, named George, seven, and Leaf, 12. (Phoot by Chester Zoo)

A fellow officer comes to the aid of injured patrolman C.V. Satt, who was pelted with rocks and beer bottles during a clash between police and relief demonstrators in Denver September 23, 1935. (Photo by Henry G. Eisenhand/AP Photo)

Comandos de Salvamento rescuers Maria Martinez (L) and Ana Chichilla attend to a wounded homeless man in San Salvador, El Salvador July 16, 2016. The man was attacked with a machete by suspected gang members. In 2015, El Salvador registered a record 103 homicides per 100,000 habitants, making it one of the most dangerous countries in the world outside a war zone. But for many young people who have few chances to distance themselves from rivalries between so-called maras in their schools and neighbourhoods, a civil-society organisation called the Comandos de Salvamento, or Rescue Corps, has been a refuge. (Photo by Jose Cabezas/Reuters)

Excited Brits beamed as they grabbed a pint outside in Leeds, United Kingdom on April 17, 2021. Pubs and restaurants with outdoor space have been allowed to reopen as lockdown restrictions are eased in the UK. (Photo by Nb press ltd)

Protesters begin to gather ahead of the UK Student Climate Network's Global Climate Strike at Millbank in London, England on September 20, 2019. (Photo by Gareth Fuller/PA Images via Getty Images)