In the last five years, approximately 500 miles south of Yellowstone, Colorado has gone through a similar wolf reintroduction ...

Photographer Drew Simms braved extreme winter conditions in Yellowstone National Park to document its wildlife enduring a freezing temperatures as low as -37°F (-38.3°C). Over a week-long expedition, ...

Mountain lions are much more widespread than and adaptable than mountain goats, roaming from the Canadian Yukon to the ...