Seward, Alaska – This audio diary is part of the Powerful Signals Radio Series. Harbor seals were once a common site on the shores of Alaska....but in the last 30 years or so, the population has declined by as much as 85 percent. Dr. Lori Polasek wants to know why. Polasek is studying harbor seals at the Alaska Sea Life Center in an effort to see if a shortage of high fat prey may be contributing to the decline by affects the seals growth. Today, we get a glimpse inside Lori's life and work, in part three of her audio diary...( 7:46 ) Produced in Alaska by Ashley Gross. For more information, visit the Women In Science On The Air! website at www.womeninscience.org. Powerful Signals: Transforming the Role of Women and Girls In Science and Engineering was made possible by support from the National Science Foundation.