Siblings—it's hard to live with them, but maybe harder to live without them. They're both your first friend and your first enemy. But for those of you with older siblings, research shows that they're more than the people who picked on you as a kid. Older sibs can predict things like your academic success, smoking habit, or even your likelihood to get pregnant. For better or worse, siblings are excellent predictors of adult behavior.
They're Watching You!
Like Sibling, Like Sibling
Written by Curiosity Staff February 11, 2017
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