已经有一些证据表明环斑海豹，即一种体型与港海豹相似的海豹科物种，可能也会使用母性觅食策略。
There is already some evidence suggesting that the ringed seal, a phocids species that is similar in size to the harbor seal, may also use a maternal foraging strategy.
环斑海豹通常在洞穴的底部生育。
这些北极熊在冬天慢慢地聚集到岸边，因为他们能在寒冷的冰层上猎到自己的美味——环斑海豹。
The bears are slowly congregating along the coast, anticipating the winter freeze of Hudson Bay when they can get onto the ice and hunt their favorite meal of ringed seal.
这些北极熊在冬天慢慢地聚集到岸边，因为他们能在寒冷的冰层上猎到自己的美味——环斑海豹。
The bears are slowly congregating along the coast, anticipating the winter freeze of Hudson Bay when they can get onto the ice and hunt their favorite meal of ringed seal.
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