Prince Philip, Duke of Edinburgh practicing his bicycle polo technique, Windsor Great Park, Berkshire, 1964. (Photo by Norman Potter/Daily Express/Hulton Archive/Getty Images)

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)

In this February 19, 2014 photo, a skate seller puts slices of skate into styrofoam boxes for shipment to customers around South Korea at a fish market in Mokpo, a port city on the southwestern tip of the Korean Peninsula. The aroma of one of southwestern South Korea's most popular delicacies regularly gets compared to rotting garbage and filthy bathrooms. And that's by fans. The unusual dish is typically made by taking dozens of fresh skate, a cartilage-rich fish that looks like a stingray, stacking them up in a walk-in refrigerator and waiting. Up to a month in some cases. (Photo by Ahn Young-joon/AP Photo)

People participate in the Winter Snow Sports Festival in Kalam, about 99 km from Mingora in the northern upper reaches of Swat valley on February 12, 2022. (Photo by Abdul Majeed/AFP Photo)

A woman daubed in colours shakes her head to remove the coloured powder during Holi celebrations in Ahmedabad, India on March 18, 2022. (Photo by Amit Dave/Reuters)

On the festival of Krishna Janmashtami, a girl costumed as Lord Krishna poses for a photo in Dhaka, Bangladesh on August 19, 2022. (Photo by Nayem Shaan/ZUMA Press Wire/Rex Features/Shutterstock)

A model wears a creation as part of the Dolce & Gabbana women's Spring Summer 2024 collection presented in Milan, Italy, Saturday, September 23, 2023. (Photo by Antonio Calanni/AP Photo)

An Indian soldier blows fire as he performs an acrobatic manoeuvre known as 'Mallakhamb' during an event in Jaipur on December 5, 2024. (Photo by Himanshu Sharma/AFP Photo)