A dolphin swims alongside ships and fishing boats at the Bosphorus in Arnavutkoy district of Istanbul, Turkiye on May 21, 2023. (Photo by Isa Terli/Anadolu Agency via Getty Images)
Greece competes in the final of the women's team free artistic swimming event during the World Aquatics Championships in Fukuoka on July 21, 2023. (Photo by François-Xavier Marit/AFP Photo)
A squid swims underwater off the shore of the coastal city of Qalamun, north of the Lebanese capital Beirut, on September 24, 2019. (Photo by Ibrahim Chalhoub/AFP Photo)
Team China performs during the team free routine artistic swimming competition at the 19th Asian Games in Hangzhou, China, Sunday, October 8, 2023. (Photo by Aaron Favila/AP Photo)
Members of the Coney Island Polar Bear Club warm up before swimming at the beach at Coney Island in New York, December 15, 2013. (Photo by Eric Thayer/Reuters)
A puffin swims underwater in search for fish off the coast of the Farne Islands in Northumberland, North East England in the last decade of July 2025. (Photo by Brian Matthews/Solent News & Photo Agency)
A man walks past kelp as he goes for a swim in the Pacific Ocean at La Jolla Shores, Thursday, July 24, 2025, in San Diego. (Photo by Gregory Bull/AP Photo)