• [Wiki] http://en.wikipedia.org/wiki/Lontra_canadensis.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Lontra_canadensis.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.
• [Reed2008] Reed-Smith, J. (2008). North American river otter husbandry notebook, 3rd edition. Columbus Zoo and Aquarium.