A place created from water and ice, Alaska isn't always the frozen frontier you imagine.  In summertime, Alaska explodes with life.  It's a season of abundance, with nearly 20 hours of sunlight a day.  Warmth unlocks water from glaciers, ice caves and waterfalls, creating a paradise for wildlife. Salmon rush from the sea to spawn, bears grow fat on summer's bounty, and Steller sea lions bask in the sun. It's a short but crucial season for the animals.