Bloodthirsty by Thomas P. Peschak, Germany/South Africa — winner, Behaviour: birds. When rations run short on Wolf Island, in the remote northern Galápagos, the sharp-beaked ground finches become vampires. Their sitting targets are Nazca boobies and other large birds. The finches rely on a scant diet of seeds and insects, which regularly dries up, so they drink blood to survive. ‘I’ve seen more than half a dozen finches drinking from a single Nazca booby,’ says Tom. Rather than leave their nests the boobies tolerate the vampires, and the blood loss doesn’t seem to cause permanent harm. (Photo by Thomas P. Peschak/2018 Wildlife Photographer of the Year)

A model presents a creation by Versace from the Spring/Summer 2023 collection during the Milan Fashion Week, in Milan, Italy, 23 September 2022. The Milano Fashion Week Women's runs from 20 to 26 September. (Photo by Mourad Balti Touati/EPA/EFE)

An aircraft passes the rising full moon that breaks through the clouds at the airport in Frankfurt, Germany, Monday, March 9, 2020. (Photo by Michael Probst/AP Photo)

North Korean soldiers march during a military parade marking the 105th birth anniversary of the country's founding father Kim Il Sung in Pyongyang, North Korea, April 15, 2017. (Photo by Damir Sagolj/Reuters)

A demonstrator scuffles with riot police during a rally ahead of International Women's Day, in Ankara, Turkey on March 6, 2022. (Photo by Cagla Gurdogan/Reuters)

Izelle Nair, 39, the instructor at the Merschool poses for a portrait in her mermaid attire at the centre in Kayalami, Midrand, South Africa on June 3, 2022. Mermaiding is a fast growing sport world wide and includes several skills such as monofin swimming, sculling, tricks and breath hold. (Photo by Marco Longari/AFP Photo)

Rows of workers shelter under umbrellas from the scorching heat as they painstakingly sort through a red carpet of millions of chilli peppers in Bogra, Bangladesh on October 3, 2023. They sort the rotten and broken chilli peppers out to separate the poor quality ones which won't sell. In a line, the pickers who are paid less than £3 for a 10-hour shift slowly move forward with their baskets to separate the bad from the good after the chilies have been dried in the sun for a week. (Photo by Joy Saha/Rex Features/Shutterstock)

Dameon Harris of Nevada gets used to the controls of a bulldozer at Dig This October 27, 2011 in Las Vegas, Nevada. At Dig This, tourists take a short class and can then operate full-size hydraulic excavators and track-type bulldozers in a giant sandbox while being guided by instructors over headsets. (Photo by Ethan Miller/Getty Images)