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)

A man is silhouetted in front of the Allianz-Arena as he walks his dogs at sunrise in Munich, southern Germany, Friday, April 10, 2015. (Photo by Peter Kneffel/AP Photo/DPA)

Students take part in a parade during celebrations commemorating Nicaragua's 201th anniversary at the revolution square in Managua, on September 14, 2022. (Photo by Oswaldo Rivas/AFP Photo)

Britain's Molly Caudery competes in the women's pole vault finals during the IAAF Diamond League competition on May 10, 2024 at the Suheim Bin Hamad Stadium in the Qatari capital Doha. (Photo by Karim Jaafar/AFP Photo)

US President Joe Biden departs the White House for California, where he will review damage from recent flooding, in Washington, DC, USA, 19 January 2023. (Photo by Jim Lo Scalzo/EPA/EFE)

A United States Secret Service agent fights with the wind as Marine One with United States President Joe Biden on board departs from the White House in Washington to Ottawa, Canada on March 23, 2023. (Photo by Rex Features/Shutterstock)

A young bull flees from a Brazilian vaqueiro, or cowboy, competing in the “Pega de Boi” (Ox Catch) tournament in Cabrobo, Pernambuco State, Brazil, on September 4, 2022. The riders compete in pairs to retrieve a cord from a bull which has been released and runs away from them and they are timed on how quickly they can return with the cord. The leather clothing provides them with protection from the dense savannah vegetation which contains a lot of large thorns. Riders have been known to die competing in the tournament (Photo by Carl de Souza/AFP Photo)

Actors Ryan Reynolds, Blake Lively, fashion model Gigi Hadid and Hugh Jackman attend the premiere of “Deadpool and Wolverine” in New York City, New York, U.S., July 22, 2024. (Photo by Caitlin Ochs/Reuters)