Discover the fascinating world of the **Harbor Seal** (*Phoca vitulina*), a medium-sized pinniped that thrives along the Northern Hemisphere's coastlines from sandy beaches to rocky shores. Learn about their social behaviors, diverse diet, and vital role in marine ecosystems, as well as their conservation status and intriguing adaptations, including their remarkable breath-holding abilities. Join us as we explore the life and habitat of these charismatic marine mammals!