Young gymnasts practice pull-up on a bar at a gymnasium of a sports school in Jiaxing, Zhejiang province April 11, 2015. (Photo by William Hong/Reuters)

Four-month-old fox cubs squaring up to each other in Walthamstow, England on August 7, 2015. (Photo by Greg Morgan/Barcroft Media)

English singer and songwriter Dua Lipa “woke up in Vegas” early April 2022 in red thigh-high tights. (Photo by dualipa/Instagram)

Canadian actress Nina Dobrev kicks her leg up at Burning Man in the first decade of September 2022. (Photo by nina/Instagram)

American socialite and media personality Kylie Jenner in the second decade of May 2023 gets up close and personal with a selfie. (Photo by kyliejenner/Instagram)

American rapper Lizzo in the last decade of October 2024 is painted in red as she dresses up as a “Hunny Bunny” action figure. (Photo by lizzobeeating/Instagram)

These Arab recruits line up in a barracks square in the British Mandate of Palestine, on December 28, 1940, for their first drill under a British solider. Some 6,000 Palestinian Arabs signed up with the British Army during the course of World War II. (AP Photo)

Fearless daredevils clamber up the worlds highest man-made climbing wall – running up the face of a 540ft dam. The Diga di Luzzone in Switzerland is considered by climbers as the Everest of wall climbing. (Photo by Ilana Marcus/Caters News)