The German Society for Nature Photography (GDT) has selected its Nature Photographer of the Year 2020. Here: Winner, Other animals. Jens Cullmann – Danger in the Mud. Crocodile in a drying pool. (Photo by Jens Cullmann/2020 GDT Nature Photographer of the Year)

Pamukkale, Turkey, is home to these terrace pools, formed by the build-up of carbonate mineral from the warm water flowing from the thermal springs above. (Photo by Image Courtesy of Jennifer Hayes/Getty Images)

A winter swimmer jumps into a pool in the frozen Songhua River during an activity for welcoming the Chinese New Year on January 30, 2022 in Harbin, Heilongjiang Province of China. (Photo by Liu Yang/VCG via Getty Images)

Visitors crowd an artificial wave swimming pool at a tourist resort to escape the summer heat in Daying county of Suining, Sichuan province, China, July 11, 2015. (Photo by Reuters/Stringer)

Water pools on top of a water lily leaf after rain at Benchakitti Forest Park in Bangkok, Thailand on September 27, 2023. (Photo by Jorge Silva/Reuters)

Mom dressed as Santa and a boy dressed as Santa's helper posing under the water in the pool on December 15, 2016 in Odessa, Ukraine. (Photo by Andrey Nekrasov/Barcroft Images)

People wearing Christmas hats bath in a pool of watermelon peel during a Christmas service at a hot spring in Luoyang, Henan province, China, December 24, 2016. (Photo by Reuters/Stringer)

Jonny Simpson-Lee captures the moment these adorable pooches dove head first into a pool. Here: A Golden Labrador jumps for a tennis ball baring his teeth. (Photo by Jonny Simpson-Lee/Caters News Agency)