The photographs feature fish that have been specially treated to make the stained skeletal tissues visible through the skin and flesh. The technique, developed by Dr. Adam Summers, uses dyes, hydrogen peroxide, a digestive enzyme and glycerin to make the flesh seem to disappear. Photo: This image of the butterfly ray (Gymnura crebripunctata) helped scientists study the joints in its wings. (Photo by Adam Summers)

A folk artist shakes iron nets with hot charcoals to create sparks during Huohu (fire pot) performance on December 28, 2024 in Nanjing, Jiangsu Province of China. (Photo by VCG/VCG via Getty Images)

The 26th annual National Geographic Traveler Photo Contest is now accepting submissions. Official categories include: “Travel Portraits”, “Outdoor Scenes”, “Sense of Place” and “Spontaneous Moments”. The contest is accepting entries until June 30. Photo: “Forest lights”. Aurora Borealis over the forest of the Pyhae Luosto National Park, Finland. (Photo and caption by Nicholas Roemmelt/National Geographic Traveler Photo Contest)

Music student Daniele Gonzalez, (centre row, L), and Australian musician Susie Park from the Minnesota Orchestra (centre row, 2nd L), react during a rehearsal in Havana, May 15, 2015. The Minnesota Orchestra will offer two concerts in Havana and is the first major U.S. orchestra to play in Cuba since 1999. The trip cost nearly $1 million. It was underwritten by Marilyn Carlson Nelson, an heir to the Carlson hotel company fortune, and her husband Glen. The U.S. government gave special permission for a direct charter flight from Minneapolis to Havana for the event, putting 4 tons of equipment and 160 people on an Airbus 330. (Photo by Alexandre Meneghini/Reuters)

Natalie Portman and Tessa Thompson speak at the Marvel Studios Panel during 2019 Comic-Con International at San Diego Convention Center on July 20, 2019 in San Diego, California. (Photo by Kevin Winter/Getty Images)

In this image taken with a slow shutter speed, Slovakia's Emma Zapletalová competes in the women's 400-meter hurdle race during the Bislett Games athletics meeting at Bislett Stadium in Oslo, Thursday, June 12, 2025. (Photo by Fredrik Varfjell/NTB via AP Photo)

Pascal Siakam #43 of the Indiana Pacers dunks against Jalen Williams #8 of the Oklahoma City Thunder during the third quarter in Game Six of the 2025 NBA Finals at Gainbridge Fieldhouse on June 19, 2025 in Indianapolis, Indiana. (Photo by Maddie Meyer/Getty Images)

A woman poses for a photo in front of an installation to promote the film “Godzilla Minus One”, which won the Oscar for best visual effects at the Academy Awards in Los Angeles, outside a popular shopping centre and official development in the Hibiya area of Tokyo on March 11, 2024. (Photo by Richard A. Brooks/AFP Photo)