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Nature's 7 meanest mommies

Giant panda

Photo: drs2biz/Flickr

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Giant panda

What? Giant panda? I know, but it’s true. In the wild, a mommy giant panda does much better investing her resources into raising only one baby, but she often bears two. Here we have what one naturalist refers to as “quality control” — mom favors the stronger-seeming offspring, and leaves the weaker one to wither in the wild.