What are two groups of small islands in the long tail Alaska?

* The Aleutian Islands are a chain of about 100 islands that stretch over 1,000 miles from the Alaska Peninsula to Russia's Kamchatka Peninsula. The islands are volcanic in origin and are home to a variety of wildlife, including seabirds, seals, and sea otters.

* The Pribilof Islands are a group of four small islands located in the Bering Sea, about 150 miles west of St. Paul Island. The islands are home to the largest colony of fur seals in the world.