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 model presents creations from the 2023 Spring/Summer collection by Japanese designer Lim Asafuji for the label “pays des fees” during the Tokyo Fashion Week in Tokyo, Japan, 01 September 2022. The presentation of the 2023 Spring/Summer collections runs from 29 August to 03 September. (Photo by Franck Robichon/EPA/EFE)

People dressed in underwear run into a store to pick free clothes during a promotional event starting the summer sale at an outlet of the Desigual clothing retailer in Berlin, June 20, 2014. Desigual treated the first 100 customers with a free outfit if they stripped down to their underwear for the first day of the outlet's summer sale. (Photo by Thomas Peter/Reuters)

A Palestinian boy takes part in a military-style summer camp being held by the Islamic Jihad movement during the youngsters' summer school vacation in Khan Younes town, in the southern Gaza Strip, 13 July 2016. Thousands of youngsters between the age of six and 16 can participate in the summer camp where they receive military as well as religious training. (Photo by Hatem Omar/EPA)

These are the stunning images of what looks like a picturesque winter wonderland – but actually shot in the middle of summer. Amateur photographer Catherine Perkinton, 45, has spent the summer travelling around the country to create the fabulous images by utilising infra-red. (Photo by Catherine Perkinton/SWNS/ABACAPress)

A mahout splashes water on his elephant on a hot summer day in Ahmedabad, India on April 8, 2019. (Photo by Amit Dave/Reuters)

Russian supermodel Irina Shayk shares a snap from an “island summer nite (sic)” in the last decade of August 2022. (Photo by irinashayk/Instagram)

A mahout splashes water on his elephant in the river Sabarmati on a hot summer day in Ahmedabad, India, May 20, 2015. (Photo by Amit Dave/Reuters)