Grizzly Country
Rangers at Denali National Park train hikers for planned encounters with grizzlies.
Rangers at Denali National Park train hikers for planned encounters with grizzlies.
Showing1to20of426results
Icebergs inch their way through miles and thousands of years to be born as an island.
Uncover the activity, both human and natural, that occurs on the slopes of volcanoes.
Several species adapt to life in Antarctica's subzero waters.
Alaska's icy landscape, humpback whales, grizzlies and the northern lights.
In the Iditarod Sled Dog race, the bond between mushers and their dogs is vital.
Dog trainers take unwanted dogs and train them to herd sheep and sniff bombs.
The Druids are the first wolves reintroduced into Yellowstone National Park.
In Yellowstone, size and power square off against speed and teamwork: grizzly vs. wolf.
Ecologist Chris Morgan travels to northern Alaska in late fall to see polar bears.
Ecologist Chris Morgan explores the world of black bears.
Ecologist Chris Morgan camps among the largest concentration of grizzles in the world.
The rescue of the grizzly population of Yellowstone and ensuing social problems.
Rangers at Denali National Park train hikers for planned encounters with grizzlies.
A decade after a momentous dam removal, salmon are helping revive a lost U.S. ecosystem.
Conservationists invoke Ecuadorian rights of nature to save biodiversity hotspots.
Scientists, soldiers, and landowners are giving a special woodpecker a new lease on life.
British beavers bring chaos, controversy and benefits to an over-manicured landscape.
New Yorkers are deploying oysters to restore their harbor and protect their coastline.
From dust storms in Australia to ice storms in Canada: How temperature drives weather.
Without water, there would be almost no weather: Richard explores water's crucial role.
Showing1to20of426results