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)

Li Tingting, second from right, laughs as she is lifted off the ground by her wife Teresa Xu, right, outside of a beauty salon where the two were preparing for their wedding as clerks from an adjacent shop look on in Beijing, Thursday, July 2, 2015. Li, a 25-year-old prominent women's rights activist who was released from detention in April, held the wedding ceremony with her partner Teresa on Thursday and announced their marriage in an effort to push for LGBT (lesbian, gay, bisexual, and transgender) rights in China. (Photo by Mark Schiefelbein/AP Photo)

Revelers dance and shout as they listen to music, in front of the main stage, during the 21st Woodstock Festival in Kostrzyn-upon-Odra, Poland July 31, 2015. An estimated 200,000 people attended the ongoing festival, a brainchild of Polish journalist and social campaigner Jerzy Owsiak, on Friday. Owsiak initiated the event to say thank you to those who donated money to his GOCC charity organisation that delivers medical care for children. (Photo by Kacper Pempel/Reuters)

Storks casts shadows as they search for food on the dried-up Lake May in southwest Turkey on October 30, 2021. (Photo by Seyit Konyal/Solent News)

A pilgrim crawls in front of the Navy band outside the Holy Church of Panagia of Tinos, on the Aegean island of Tinos, Greece, on Saturday, August 15, 2020. For nearly 200 years, Greek Orthodox faithful have flocked to Tinos for the August 15 feast day of the Assumption of the Virgin Mary, the most revered religious holiday in the Orthodox calendar after Easter. But this year there was no procession, the ceremony – like so many lives across the globe – upended by the coronavirus pandemic. (Photo by Thanassis Stavrakis/AP Photo)

Former UK' Love Island star Megan Barton Hanson stripped for OnlyFans in November 2020. The star has made a fortune stripping on her OnlyFans website, where it is estimated she earns up to £800k a month. (Photo by Ochiuk/Chilli Media)

A red squirrel and a woodpecker having an “argument” over some nuts in a woodland near Lockerbie, Dumfries and Galloway in Johnsfield, England in September 2020. (Photo by Karen Crawford/South West News Service)

A full moon is seen behind buildings at night in Ashkelon, southern Israel on December 1, 2020. (Photo by Amir Cohen/Reuters)