Przewalski's Horses, Chernobyl Exclusion Zone, Ukraine

A band of Przewalski's horses on frozen grassland inside the Chernobyl Exclusion Zone in northern Ukraine. The thick winter coats and blunt, dark-tipped manes are the same as on the Mongolian steppe, a very long way from home. A small group was released here in 1998 to see whether the farmland emptied after the 1986 disaster would suit them. With people gone, the herd grew, which makes this one of the strangest places on the planet to find wild horses: a rewilded zone where access is tightly restricted.