Norfolk marine rescue centre. See rescued seals at the seal sanctuary hospital. Visit the otter and penguin sanctuaries and view marine life from an underwater tunnel with tropical sharks.

UK National rescue centre for seals in Gweek, Cornwall. See seals at the seal hospital and hear all about their stories. Also discover the otters, penguins and the interactive rockpool.

Explores the world of sperm whales. Features an interview with whale researcher Jonathan Gordon and a multimedia presentation that briefly discusses the biology, social structure, and habits of sperm whales.

Online companion to PBS Nature documentary about the giant saber-toothed Arctic walrus. Includes photos and video clips.

Background information on whales, dolphins and porpoises, FAQs, a glossary, essays on Cetacaen evolution and conservation, and information on whale watching opportunities.

Dedicated to the conservation of whales and their ocean environment. Voyage of the Odyssey, education, gallery, and research.

Research focuses on marine mammal health issues, with the goal of improving the rehabilitation process for stranded animals. Includes information on current research, bibliography.

Live sound and images of the orcas in the natural environment of Hanson Island, near Vancouver Island, Canada. The live Webcasting is only available in season.