Many endangered species live in the tundra, including polar bears, arctic foxes, arctic peregrine falcons, Eskimo curlews and wood bison. Thawing in the arctic permafrost due to global climate change, hunting and habitat destruction further threaten these endangered species.
As the permafrost thaws in tundra regions, animals that usually live in warmer habitats to the south of the tundra move north and compete for the same food supply used by the arctic animals. The migrating red fox population poses a serious threat to the native arctic foxes. Polar bears need to travel farther for limited food supplies. Increased travel and less food shorten the mating season, leading to fewer young and further decreasing the population.