A female referee counts as member of Uganda's Soft Ground Wrestling is pinned to the ground during a training session at their camp in Mukono on February 28, 202. Uganda's Soft Ground Wrestling is getting attention worldwide and becoming an Internet sensation. Members showcase their wrestling skills on their YouTube channel, performing inside makeshift bamboo ring posts with string ropes and soil. Currently, Soft Ground Wrestling has 200 members, most of them from unprivileged backgrounds, and include both men and women training vigorously as they dream of becoming professional wrestlers. (Photo by Badru Katumba/AFP Photo)

A new book published by the UK Natural History Museum showcases some of the most memorable underwater photographs taken over the last few decades in its annual wildlife photographer of the year competition. Here: Giant gathering by Tony Wu. “The first indication that something extraordinary was going on were the blows, huge numbers of them – the exhalations of huge numbers of whales. Entering the water, the photographer witnessed an extraordinary scene”. (Photo by Tony Wu/Unforgettable Underwater Photography/NHM)

Women pose for a selfie at Ipanema Beach in Rio de Janeiro, Brazil on July 30, 2016. (Photo by Nacho Doce/Reuters)

Labourers carry a basket packed with vegetables through a wholesale market in Kolkata, India, February 26, 2016. (Photo by Rupak De Chowdhuri/Reuters)

People wash in water from a broken water pipeline on the outskirts of Kolkata, India, March 30, 2016. (Photo by Rupak De Chowdhuri/Reuters)

Fireworks explode over a floating Christmas tree in Lagoa Lake in Rio de Janeiro. (Photo by Victor R. Caivano/Associated Press)

A man carrying a sailfish walks through Hamarweyne district in South Mogadishu on March 25, 2015. (Photo by Carl De Souza/AFP Photo)

Revellers participate in the annual gay pride parade in Amsterdam, Netherlands on August 4, 2018. (Photo by Piroschka van de Wouw/Reuters)