Though smaller than many other phocids, harbor seals are similar in size to most otariids.

虽然港海豹的体型较小，但其体型与大多数的 otariids（海狮和海狗）相似。

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Harbor seals are small compared with other phocids species such as grey seals, all of which are known to fast for the entire lactation period.

与其他 phocids 物种（如灰海豹）相比，港海豹体型较小。众所周知，灰海豹在整个哺乳期都禁食。

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The maternal strategy evolved by harbor seals may have to do with their small size and the large proportion of their fat stores depleted in lactation.

麻斑海豹进化出的母性策略可能与它们的小体型和哺乳时消耗掉的大部分脂肪有关。

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