Three cases of potential twinning in Weddell seals ( Leptonychotes weddellii ) at Fildes Peninsula, King George Island, Antarctica
作者： Fuxing Wu , Zhengwang Zhang , Xing Miao , Yufei Dai , Xianyan Wang
DOI: 10.1007/S00300-017-2222-0
关键词: Peninsula 、 Growth development 、 Biology 、 Zoology 、 Leptonychotes weddellii 、 Seasonal breeder
摘要: An isolated female with two pups in the field has occasionally been documented pinnipeds; this phenomenon may represent twinning, fostering, or adoption. This study presents three cases of Weddell seals (Leptonychotes weddellii) that attended on Biyu Beach at Fildes Peninsula, King George Island, Antarctica where 16 mother–pup pairs were observed total during 2014 breeding season. Each pup each case exhibited intense association female, despite being separated occasions from mother. In case, both pups, about 3 weeks age, showed different growth development, which corresponded to duration nursing their mothers; bigger had more opportunity suckle. Moreover, born a low-density colony, and strong attachment mother, showing similarities other studies confirmed twinning pinnipeds. All individuals good condition when last seen, could be due possible suitable rearing environment, e.g., colony flat beach topography.
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