Alaska

The salmon run is in full flow along the rivers of Alaska. But can they find a way past the predators that lie in wait?

On Admiralty Island, bears dominate the landscape. For one mother bear, it is a challenge to keep her cubs fed and safe.

A rainforest this close to the Arctic? The secret lies in mild temperatures prompted by the warmth of ocean water.

Summer marks the arrival of Alaska's humpback and killer whales--two giants with vastly different feeding habits.

As the Alaskan tide retreats, shorebirds and otters feast on the fish and clams left behind in isolated tidal pools.

Glaciers seem unbreakable. But just as climate fashioned their rise, climate change can orchestrate their demise.