birth order 163 SOURCES OF SIBLING COMPETITION On average, siblings with the same parents share half their genes. As a consequence, most siblings are twice as related to themselves as they are to one

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Date: 2010-10-06 19:54:39		birth order 163 SOURCES OF SIBLING COMPETITION On average, siblings with the same parents share half their genes. As a consequence, most siblings are twice as related to themselves as they are to one Add to Reading List Source URL: www.sulloway.org Download Document from Source Website File Size: 1,44 MB Share Document on Facebook