Pygmy Right Whale - Description of Caperea marginata from Walker's Mammals of the World. www.press.jhu.edu/books/walker/cetacea/cetacea.neobalaenidae.caperea.html
Right Whale Data and Maps - Extensive information from the western North Atlantic, including sighting reports, Right Whale recovery plans, and whale watch guidelines, and reports on entangled whales. whale.wheelock.edu/rightwhale
Right Whales - Description of the Balaenidae and its two species from Walker's Mammals of the World by Ronald Nowak. www.press.jhu.edu/books/walker/cetacea/cetacea.balaenidae.html