Abstract
IN recent years much attention has been paid to methods of age determination for marine mammals, and several reliable techniques are now available. Ovarian corpora albicantia counts1,2, baleen plate ridges3, internal growth layers in the dentine and cementum of teeth4, and laminations in the ear plug of baleen whales5 are in use. Certain of these techniques have been applied with success to some terrestrial mammals, notably the method based on tooth structure6,7. In other species, marine and terrestrial, these methods cannot be used.
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LAWS, R. Laminated Structure of Bones from Some Marine Mammals. Nature 187, 338–339 (1960). https://doi.org/10.1038/187338a0
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DOI: https://doi.org/10.1038/187338a0
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