Boreal forests, spongy tundra and perpetual sunshine mark summertime in Alaska’s North Slope—the state’s ... uncovered a large swath of fossilized dinosaur tracks, plants, feces and tree ...

both researchers at the University of Alaska Fairbanks, in summer 2012 found in the thawing bank of a northern river almost the entire skeleton of a steppe bison that died during the last ice age.