A health worker applies a dose of the AstraZeneca vaccine during the first day of a three-day COVID-19 vaccination campaign for people over age 35 in the Complexo da Maré favela of Rio de Janeiro, Brazil, Brazil, Thursday, July 29, 2021. Some recipients will be monitored to study the rate of protection the vaccines provide and the extent to which virus variants are circulating. (Photo by Bruna Prado/AP Photo)

Nefertara, a supporter of pop star Britney Spears, wears an outfit inspired by the singer as she holds a picture of Britney that she painted, during a gathering on the day of a conservatorship case hearing at Stanley Mosk Courthouse in Los Angeles, California, U.S., September 29, 2021. (Photo by Mario Anzuoni/Reuters)

Winner Jorge Prado of Spain in action during the first MXGP race at the 2023 FIM Motocross World Championship in Frauenfeld, Switzerland, 10 April 2023. (Photo by Gian Ehrenzeller/EPA)

Olga Carmona of Spain celebrates after scoring a goal during the FIFA Women's World Cup 2023 Final soccer match between Spain and England at Stadium Australia in Sydney, Australia, 20 August 2023. (Photo by Dean Lewins/EPA/EFE)

This photo taken on February 10, 2025 shows a captured green iguana being held by hunters after it was brought down by a slingshot in Pingtung. Taiwan's iguana population has exploded since the spikey-backed giant lizards were introduced from Central and South America more than 20 years ago as exotic pets. Many escaped or were dumped by their owners and have bred rapidly in the warm climate of southern Taiwan, invading neighbourhoods and ravaging farmers' crops. (Photo by I-Hwa Cheng/AFP Photo)

Miho Nonaka of Japan competes in the Women Boulder&Lead, Semifinal Lead of the Sport Climbing competitions in the Paris 2024 Olympic Games, at the Le Bourget Sport Climbing Venue in Le Bourget, France, 08 August 2024. (Photo by Christophe Petit-Tesson/EPA/EFE)

Arctic wolves in their new enclosure in the wildlife park in Hanau, Germany, 10 February 2015. The pack is one of the park's main attractions, which specializes in local and European breeds. (Photo by Boris Roessler/EPA)

David Hall’s photographs of scenery and creatures off the coast of Canada in the Pacific Northwest portray serenity under the water, which belie the extreme challenges he faces to get his images. For each shoot, Hall wears a dry suit, a neoprene body suit that covers all of his body but his head and traps air inside to keep him warm. Water temperature in Canada’s British Columbia typically ranges between 45 and 50 degrees Fahrenheit. Photo: Moon jellyfish and cross jellies. (Photo by David Hall)