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Appendix S1. Major geographic zones and major aquatic regions occupied, and birthing habitats for the 36 species and 49 subspecies of pinnipeds (including two extinct species). Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
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Kovacs et al. (2011) studied this question.
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