High in the Russian Far East, in the Arctic Ocean, lies Wrangel Island, a harsh landscape that supports a surprisingly diverse ecosystem. Wrangel, about the same size as Yellowstone National Park, is home to musk oxen, Arctic foxes, polar bears, and several other species of land mammals, and is visited by more than a hundred species of migratory birds. The island was one of the last refuges for woolly mammoths on Earth. Today, biologists are studying the island’s animals and plants to monitor the effects of the warming climate and the growing presence of humans in the Arctic. Photographer Sergey Gorshkov visited Wrangel, and returned with these photos, recently published in the online magazine bioGraphic.