Northern fur seals congregate on the Pribilof Islands in the central Bering Sea only in summer and fall. During the winter months, where do the seals go, and what do they eat? To understand the seals' migration pattern and food resources, researchers from NOAA use satellites to track migrating fur seals throughout the year. The resulting data reveal the wandering route that each individual seal takes as it travels alone for about eight months, with some traveling up to 6,000 miles! But the fur seal population is declining, and fewer and fewer young seals are returning to the Pribilof Islands each year. By tracking and studying the seals along their migration route, scientists are hoping to find the answers that will help ensure the seals' survival.