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 stroller walks his dogs in an autumnally colored forest in Cuxhaven, nothern Germany on November 7, 2018. (Photo by Patrik Stollarz/AFP Photo)

A City of Hollywood SWAT team member helps Alex Treacy from a search and rescue truck as she is evacuated from a flooded area on June 12, 2024, in Hollywood, Florida. As tropical moisture passes through the area, areas have become flooded due to the heavy rain. (Photo by Joe Raedle/Getty Images)

A woman adjusts the mirror of a retro tram KTM-1 (1948-1950) during the street exhibition “Retro Tram Parade” as part of marking the 125th anniversary of the city tramway service in Moscow, Russia on 13 July 2024. (Photo by Yuri Kochetkov/EPA/EFE)

In this photo provided by NASA, the sample return capsule from NASA's Osiris-Rex mission lies on the ground shortly after touching down in the desert, at the Department of Defense's Utah Test and Training Range on Sunday, September 24, 2023. The sample was collected from the asteroid Bennu in October 2020. (Photo by Keegan Barber/NASA via AP Photo)

A masquerade dances to drums along the streets during the kankurang Festival in Janjanbureh on January 27, 2024. Listed as a UNESCO World Heritage Site since 2005, Kankurang, a combination of the Mandingo words “kango” and “Kurango”, literally translated as “voice” and “force”, ensures the transmission and teaching of the values and practices that form the basis of Mandingo cultural identity, a West African people whose historical home was the Mali empire. (Photo by Muhamadou Bittaye/AFP Photo)

Alluvial Fan, China. A vast alluvial fan blossoms across the desolate landscape between the Kunlun and Altun mountain ranges that form the southern border of the Taklimakan Desert in China’s XinJiang Province. Image taken by the ASTER instrument on NASA’s Terra satellite on May 2nd, 2002. (Photo by NASA/GSFC/USGS EROS Data Center)

A woman takes a selfie in front of a Lunar New Year display featuring sheep at a shopping mall in Hong Kong, February 13, 2015. (Photo by Bobby Yip/Reuters)