1. Otter ecology and its background -- 2. Pen pictures. Thirteen otters of the world : some natural history -- Europe -- Common or Eurasian otter, Lutra lutra -- North America -- River otter, or North ...
Spelman, Lucy H., Sumner, P. W., Levine, J. F., and Stoskopf, M. K. 1993. "Field anesthesia in the North American river otter (Lutra canadensis)." Journal of Zoo and ...
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