Activists from the climate action group Ocean Rebellion perform a stunt outside the Science Museum, in London, United Kingdom on May 19, 2021. (Photo by Hannah McKay/Reuters)

A baby dives as his mother holds on tightly during a water baby class in Odessa, Ukraine on August 6, 2016. (Photo by Andrey Nekrasov/Barcroft Images)

Behaviour: Mammals category. Giant Gathering by Tony Wu, USA. Dozens of sperm whales mingled noisily off Sri Lanka’s northeast coast, stacked as far down as Tony could see. This was a congregation of dozens of social units, like a gathering of the clans. Aggregations like this could be a critical part of the whales’ rich social lives but are rarely reported. Some two thirds of the population was wiped out before commercial whaling was banned in 1986. This kind of major gathering could be “a sign that populations are recovering”, says Tony. (Photo by Tony Wu/Wildlife Photographer of the Year 2017)

A worker throws a cloth during a drying process at Sukoharjo near Solo, Central Java province, Indonesia, April 23, 2019 in this photo taken by Antara Foto. (Photo by Mohammad Ayudha/Antara Foto via Reuters)

May Matthews (left) and Romy Clark from Bonhams Edinburgh carry a carved wooden model of an Atlantic Salmon by Rogers Brookes (estimate £1,500-2,000) during a photo call for the upcoming Home and Interiors sale, and Sporting and Wildlife sale, at Bonhams, Edinburgh, on September 16, 2020. (Photo by Jane Barlow/PA Images via Getty Images)

Police officers in action during the eviction of the “Liebig 34” squat, at Friedrichshain district in Berlin, Germany, 09 October 2020. A local court ruled in favor of the eviction of the self-declared “anarcha-queer feminist” house project at Liebig street 34 in June 2020. The house project is considered a stronghold of the left-wing scene in the German capital. (Photo by Filip Singer/EPA/EFE)

French model Tiffany Fournier poses for a digital presentation as part of the spring/summer 2021 collections for the Polish fashion house La Metamorphose, in Paris, France, September 26, 2020. (Photo by Charles Platiau/Reuters)

A woman looks on as she takes part in a protest on the Day of the Dead against gender violence and femicide, in Mexico City, Mexico, November 2, 2020. (Photo by Raquel Cunha/Reuters)