Animal rights activists protest against the use of animal leather in fashion businness, a few days before the fashion week opening in Milan, Italy, 16 September 2018. (Photo by Matteo Bazzi/EPA/EFE)

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)

Models walk the runway at the Versace Pre-Fall 2019 Collection at The American Stock Exchange on December 02, 2018 in New York City. (Photo by J.P. Yim/Getty Images)

A man gets stuck under debris at a damaged site after an airstrike in the Saqba area, in the eastern Damascus suburb of Ghouta, Syria, January 9, 2018. (Photo by Bassam Khabieh/Reuters)

Thai LGBT community participates in Gay Freedom Day Parade in Bangkok, Thailand on November 29, 2018. (Photo by Soe Zeya Tun/Reuters)

Two friends attempt to balance in the icy conditions in Newcastle, England on February 2, 2019. Boozy Brits across the UK took to the streets last night to ensure they got February off to a wet start after “Dry January”. (Photo by Craig Connor/North News and Pictures)

North Korean children wave to people on a Chinese tourist boat on the banks of Yalu River near the Chongsong county of North Korea, opposite the Chinese border city of Dandong, May 8, 2011. (Photo by Jacky Chen/Reuters)