(16:59 -9°C 2411m)A coyote scans the valley in northern Yellowstone National Park.
(08:49 -19°C 2241m) An icy bison takes a sip from a stream in a frozen wonderland near Old Faithful, Yellowstone NP.
(09:14 -13°C 2199m) A great gray owl stalks rodents across the valley in the Bridger-Teton National Forest, Wyoming.
