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Curious female rats survive tumors longer Curious female rats, more willing to step out and explore their environment, survive breast and pituitary tumors longer than their more cautious sisters, said a Penn State researcher.Sonia Cavigelli, assistant professor of biobehavioral health, said that her study of 80 female rats from birth to death shows that the curious ones with tumors lived, on average, an additional six months, or 25 percent longer lives, than the cautious ones.
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