This Discovery Channel series narrated by Oprah Winfrey contains 12 chapters that can each be watched alone. The chapters deal with concepts of adaptation by focusing on a specific example. The adaptations adressed include life cycle, survival through schooling, speed, and camouflage, competition for resources, gills, symbiosis, and habitat specialization. The featured fish include: silvertip shark, fringehead, mudskipper, flying fish, convict fish, stream goby, barbels, clownfish, anchovies, sardines, sea dragon, and snapper.