A baby harp seal rests on the Arctic ice. Its mother can distinguish it from hundreds of others by scent alone.

婴儿动物图片。一只格陵兰海豹婴儿休息在北极多年冰。它的妈妈能够从好几百的其它婴儿海豹经由独自的气味辨认区别她的婴儿。

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Thomson says bringing a used baby blanket home from the hospital prior to the baby's arrival can help your pet become accustomed to the scent.

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