| Citation | Derocher, A.E. and O. Wiig, 2002 Postnatal length and mass of polar bears (Ursus maritimus) at Svalbard. J. Zool. Lond. 256:343-349. |
| Ref. | 3731 Derocher, A.E. and O. Wiig, 2002 |
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| Named Used as Valid | Leptonychotes weddellii |
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