NOAA
Noaa: Pinnipeds
What are pinnipeds? Learn about seals, sea lions, and walruses; their characteristics, where they live and their differences.
BBC
Bbc Nature: Walruses, Seals and Sea Lions
Dive in amongst the pinnipeds - the seals, walrus and sea lions - for a taste of what life is like for fin-footed, semi-aquatic mammals. Flat flippers help give these typically rotund, barrel-shaped animals an unlikely grace and beauty...