Episode 9: "ALASKA: THE COLD SEA" ENDANGERED MARINE WILDLIFE OF ALASKA South-East Alaska The western world first risked the harshness of Alaska to reap its natural resources. Whale oil, seal and otter furs. The Quest's journey investigates Alaska's wilderness and it's magnificent but endangered wildlife. They work with whale and seal scientists, encounter bears and spawning salmon, coming to realise that is the cold sea, Alaska is one of the richest marine environments in the world.