Like bottlenose dolphins and gray seals.

比如宽吻海豚和灰海豹。

Just two weeks later, all the gray seal pups on Iceland have shed their juvenile fur and now fully weaned and independent from their parents.

仅过了两周，冰岛所有灰海豹幼崽就全部褪去了初生毛皮，而现在已经完全断奶离开父母自立了。