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)

This Wednesday, August 31, 2016 photo, provided by the Syrian anti-government activist group Aleppo Media Center (AMC), shows Syrian boys dive into a hole filled with water that was caused by a missile attack in the rebel-held neighborhood of Sheikh Saeed in Aleppo province, Syria. (Photo by Aleppo Media Center via AP Photo)

A member of the media has her photograph taken with an exhibit at Ghibli's Grand Warehouse during a media tour of the new Ghibli Park in Nagakute, Aichi prefecture on October 12, 2022. (Photo by Yuichi Yamazaki/AFP Photo)

English model, television personality and former beauty queen Christine McGuinness attends the Virgin Atlantic Attitude Awards 2025 at The Roundhouse on October 08, 2025 in London, England. (Photo by Instagram)

Heidi Klum and daughter Leni set pulses racing in red lingerie. The pair star in a new campaign for Italian underwear and accessory firm, Intimissimi. German supermodel Heidi, 49, and Leni, 18, her daughter with Flavio Briatore, previously starred in a campaign for the brand. They pose here in red ahead of Christmas on November 22, 2022. (Photo by Intimissimi/The Mega Agency)

A picturesque supercell formation in the northwest of Booker, Texas from June 2013. (Photo by Mike Olbinski/Barcroft Media)

A curious leopard cub toys with a camera at MalaMala Game Reserve in Mpumalanga Province, South Africa. (Photo by Barcroft Media)

American media personality and socialite Kourtney Kardashian in the second decade of October 2022 promotes her Lemme gummy vitamins. (Photo by kourtneykardash/Instagram)