In this Thursday, May 25, 2017 photo, Donte, a musician who only gave his first name, straightens out dollar bills on his first day in a brand new Chewbacca costume purchased from eBay for $441, in the Hollywood section of Los Angeles. Donte said he replaced the old one because he wasn't making any money with it. (Photo by Jae C. Hong/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)

Villagers offer flowers to a wild tusker, laying dead in a field in Panbari villagein Panbari village on the outskirts of Gauhati, India, Thursday, November 2, 2017. According to a veterinarian the tusker died of food poisoning. Scarcity of food and illegal encroachment of forest areas have forced these wild elephant to move to populated areas for food. (Photo by Anupam Nath/AP Photo)

Pascal Craymer seen attending Pam Hogg at Freemason's Hall during LFW February 2018 on February 16, 2018 in London, England. (Photo by Goff Photos)

A model wears a creation for the Louis Vuitton Spring/Summer 2024 womenswear fashion collection presented Monday, October 2, 2023 in Paris. (Photo by Vianney Le Caer/AP Photo)

Daniel Sheridan, a council worker from Poole, Dorset, runs a side hustle snapping dogs living their best lives in the second decade of December 2024. (Photo by Daniel Sheridan/South West News Service)

Participants take part in a parade in traditional attire to celebrate Tamu Lhosar, a New Year festival of the Gurung community in Kathmandu, Nepal on December 30, 2024. (Photo by Navesh Chitrakar/Reuters)

A greyhound dog dressed up in a festive costume on Buchanan Street in Glasgow on December 24, 2023. (Photo by Michael McGurk/Rex Features/Shutterstock)