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| | LONGEVITY OF THE LAYSAN ALBATROSS, DIOMEDEA IMMUTABILIS |
 | | In their entirety, and without any further theoretical extensions, the data on the Laysan showed a minimum percent survival of adults to various minimum ages as follows: 13% to 20 years, 24% to 25 years, 9% to 30 years, 2% to 35 years, 7% to 38 years, and 3% to 40 or more years. |
 | | In summary, we may generalize that observed longevity in the Laysan Albatross is in the general order of 13% to 20 years, and, summing the data of Table 2 into a single sample of 742 albatrosses, we obtain the percentages indicated (Table 3) for birds 30 or more years of age. |
 | | For a long period the only definite information on the length of life among albatrosses was the classical example of the Black- browed Albatross (D. melaophris), which lived among the gannets of the Faeroe Islands for some 34 years (Murphy, 1936' 511). |
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