- Phocoena.org - Porpoise science and conservation, includes news and profiles of each species.
phocoena.org
- Porpoises - Description of the family Phocoenidae and its members from Walker's Mammals of the World.
www.press.jhu.edu/books/walker/cetacea/cetacea.phocoenidae.html
- The Porpoise Page - Information on the physiology, morphology, and life history of porpoise species (Family Phocoenidae), with explanation of the difference between porpoises and dolphins.
www.theporpoisepage.com
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