Medic James E. Callahan of Pittsfield, Mass., gives mouth-to-mouth resuscitation to a dying soldier in war zone D, about 50 miles northeast of Saigon, June 17, 1967. Thirty-one men of the 1st Infantry Division were reported killed in the guerrilla ambush, with more than 100 wounded. (Photo by Henri Huet/AP Photo)

16-year-old panda, Ye Ye, rests in an enclosure at the Wolong Nature Reserve, a conservation center that trains pandas for release into the wild. This image was published in the August 2016 National Geographic magazine as part of the “Pandas Gone Wild” story. (Photo by Ami Vitale/National Geographic Creative)

Enthusiasts gathered at Cad East in Snowdonia National Park, England to take pictures of F-15 Eagle fighters as they completed the Mach Loop, November 2017. (Photo by Caters News Agency)

Even upside down, a stereophonic turntable continues to play and hold the interest of Helen Sorowitz, a visitor to the New York High Fidelity Show in New York, September 9, 1960. (Photo by Ruben Goldberg/AP Photo)

A protester is taken away by law enforcement officers during a rally held by opposition supporters on the parliamentary election day in Almaty, Kazakhstan on January 10, 2021. Dozens of activists were detained in at least three major cities, including the capital, Nur-Sultan, and Almaty, with reports of independent observers being denied access or detained at some polling stations. (Photo by Petr Trotsenko/Radio Free Europe/Radio Liberty)

A protester in an Elmo mask dances during the Justice for George Floyd Philadelphia Protest on Saturday, May 30, 2020. Demonstrators took to the streets across the United States to protest the death of Floyd, a black man who was killed in police custody in Minneapolis on May 25. (Photo by Matt Rourke/AP Photo)

French model Tiffany Fournier poses for a digital presentation as part of the spring/summer 2021 collections for the Polish fashion house La Metamorphose, in Paris, France, September 26, 2020. (Photo by Charles Platiau/Reuters)

A child stops by a large print at a photographic memorial for those killed in the confrontation between Ukraine's military and the pro-Russia separatist forces in Sievierodonetsk, Luhansk region, eastern Ukraine, Wednesday, February 23, 2022. Ukraine urged its citizens to leave Russia, and Europe braced for further confrontation Wednesday after tensions escalated dramatically when Russia's leader received authorization to use military force outside his country and the West responded with a raft of sanctions. (Photo by Vadim Ghirda/AP Photo)