Alaska’s winters are brutal, with temperatures plunging far below freezing. Yet, some animals have evolved to survive and even thrive in these extreme conditions. From Arctic foxes to mighty ...

From low-flying airplanes over Alaska’s North Slope, the researchers have observed that wolverines live “pretty much everywhere,” says Martin Robards, of the WCS.

DARRELL: Tom Schumacher is this region's supervisor for the Alaska Department of Fish and Game. SCHUMACHER: Like, if you say all 3-year-old females never roll on a hair board, then those animals ...