A street cleaner demonstrates his martial arts skills in front of a closed shop near Beijing's Tiananmen Square September 2, 2015 as the capital prepares for tomorrow's parade. (Photo by Damir Sagolj/Reuters)

Greece's Stefanos Tsitsipas falls after diving to return a shot against Switzerland's Stan Wawrinka during their fourth round match of the French Open tennis tournament at the Roland Garros stadium in Paris, Sunday, June 2, 2019. (Photo by Christophe Ena/AP Photo)

A weeping South Vietnamese mother and her three children are shown on the deck of this amphibious command ship being plucked out of Saigon by U.S. Marine helicopters in Vietnam, April 29, 1975. (Photo by AP Photo)

American singer-songwriter Debbie Gibson is seen at the “Debbie Gibson's Love Song” show at 54 Below on February 08, 2025 in New York City. (Photo by Jose Perez/Bauer-Griffin/GC Images)

Italian-American actress and model Julia Fox is seen on April 28, 2022 in Los Angeles, California. (Photo by Rachpoot/Bauer-Griffin/GC Images)

American model, golf instructor, former professional golfer and social media personality Paige Spiranac drove fans wild by dressing up as Jessica Rabbit for Halloween on October 30, 2025. (Photoby X @PaigeSpiranac)

American model Hailey Bieber attends the 2025 GQ Men Of The Year at Chateau Marmont in Los Angeles, California, U.S., November 13, 2025. (Photo by Aude Guerrucci/Reuters)

Those lights are actually bioluminescent shrimp, better known as sea fireflies, or, in Japan, as “umibotaru”. Visible every year from May until the end of October, they live in the sand around very shallow sea water and are often seen floating between the extremes of high and low tides. Here: Bioluminescent sea fireflies glittering like diamonds on the rocks and sand. Okayama, Japan. July 2016. (Photo by Trevor Williams/Jonathan Galione/Getty Images)