East Berliners crossing into the West Berlin on November 11, 1989 at the Potsdamer Platz, Germany. (Photo by Kai Wiedenhoefer)

Revellers chat on Havana's Malecon seafront before performing at a carnival parade, Cuba, August 12, 2016. (Photo by Alexandre Meneghini/Reuters)

People wearing face masks to prevent the spread of coronavirus gather in a discotheque in Madrid, Spain, early Saturday, July 25, 2020. Nightlife is becoming the new target of Spanish authorities attempting to contain a spike in coronavirus infections since the country ended a lockdown. The Catalonia regional government has shut nightlife venues in Barcelona, and on Friday officials in Madrid said they were considering a similar step. (Photo by Manu Fernandez/AP Photo)

A young Muslim girl looks on as an elder helps her tie her hijab before the Eid al-Fitr prayer at Masjid Jamek Cina Muslim Klang on March 31, 2025, in Selangor, Malaysia. The mosque, inspired by the Great Mosque of Xi’an, blends Chinese and Islamic architectural influences, reflecting the nation’s rich cultural harmony. Eid al-Fitr, marking the end of Ramadan, is a time of prayers, family reunions, and celebration for Muslims worldwide. (Photo by Annice Lyn/Getty Images)

The 20-year-old American fashion model Kaia Jordan Gerber – who is the daughter of supermodel Cindy Crawford, 55, and businessman Rande Gerber, 59 – poses braless as she stuns in an edgy shoot in January 2022. (Photo by Ports 1961’s Spring/Summer Campaign)

Participants dance at the City of West Hollywood's Pride Parade on June 05, 2022 in West Hollywood, California. (Photo by Chelsea Guglielmino/Getty Images)

George Harrison of the Beatles sits cross-legged with his musical mentor, Ravi Shankar of India, a sitar virtuoso, in Los Angeles, August 3, 1967, as Harrison explains to newsmen that Shankar is teaching him to play the sitar, a 25-stringed guitar-like instrument. Harrison said “Indian music makes God come through in a spiritual way”. (Photo by AP Photo)

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)