The North American wolverine will receive long-delayed threatened species protections under a Biden administration proposal released Wednesday in response to scientists’ warnings that climate change will likely melt away the rare species’ snowy mountain refuges and push them toward extinction. Across most of the U.S., wolverines were wiped out by the early 1900s from unregulated trapping and poisoning campaigns. About 300 surviving animals in the contiguous U.S. live in fragmented, isolated groups at high elevations in the northern Rocky Mountains. Wolverines join a growing number of animals, plants and insects — from polar bears in Alaska to crocodiles in southern...