Partygoers in Cardiff, England refused to let the rain dampen their Christmas spirits on “Thirsty Thursday”, December 19, 2018. Christmas partygoers got into the party spirit last night as they headed out for some festive fun up and down the country. (Photo by Huw Evans Picture Agency)

In this May 24, 2018 file photo, rain drops accumulate on a car's windshield as commuters wait at a red light in Havana, Cuba. (Photo by Desmond Boylan/AP Photo)

Actors Rooney Mara, left, and Joaquin Phoenix arrive at the premiere of “Joker: Folie a Deux” on Monday, September 30, 2024, at TCL Chinese Theatre in Los Angeles. (Photo by Jordan Strauss/Invision/AP Photo)

Palestinians stand near a damaged vehicle, near the site where a number of Palestinians were killed in an Israeli raid, in Jenin, in the Israeli-occupied West Bank, on March 11, 2025. (Photo by Raneen Sawafta/Reuters)

New exhibition of sustainable fashion explores the role of tartan in Scottish traditional dance, opening on April 23, 2024 as part of the Pomegranates festival in Edinburgh, Scotland. Vengefully Changed Allegiance is asolo exhibition by fashion designer Alison Harm, founder of Edinburgh Psychomoda clothing brand, who uses industry scraps, vintage clot and broken jewellery. (Photo by Sally Anderson/Alamy Live News)

Revellers get into the spirit of the 40th annual Zomercarnaval – summer carnival – in Rotterdam on July 28, 2024. The two-day event is such in integral part of Netherlands tradition it was added to Unesco’s Intangible Cultural Heritage list last year. (Phoot by James Petermeier/ZUMA Press Wire)

A Boeing 777-300 from Swiss International Airlines lands on a foggy morning at Zurich Airport, on Friday, October 13, 2017, in Zurich, Switzerland. The high humidity renders the air vortex visible. (Photo by Christian Merz/Keystone via 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)