Article
Mitochondrial sequence divergence among Antarctic killer whale ecotypes is consistent with multiple species.
Biology letters - 23 Aug 2008
LeDuc Richard G, Robertson Kelly M, Pitman Robert L
Abstract excerpt
Recently, three visually distinct forms of killer whales (Orcinus orca) were described from Antarctic waters and designated as types A, B and C. Based on consistent differences in prey selection and habitat preferences, morphological divergence and apparent lack of interbreeding among these broadly sympatric forms, it was suggested that they may represent separate species. To evaluate this hypothesis, we compared...
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