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.
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。
Ringed seal pups are reared in snow dens.
环斑海豹通常在洞穴的底部生育。
A ringed seal scans for polar bears before snatching a breath.
一头呼啸的海豹在搜寻北极熊的踪迹，以便出来透口气。
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