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Show THurkfay. April 23, 1998, THE DAILY HERALD. - Tanzania: No particular reason. And: For the kids' sake. The researchers concluded instead of that menopause evolulong-tera conferring is just a tionary advantage result of aging, like failing eyesight or thinning hair. But they did find evidence that evolution has at least timed menopause so thaf a female will have lifes Press NEW YORK Scientists may have found the answers to twq questions that might nag a woman entering menopause: Why is this happening? And why now? "S The proposed answers, from 3p years of observing lions and baboons in the wiids of NO luh Page A5 baboons finds no apparent rea son for menopause ilG Tit Associated Ptovo. m NO PAYMENTS. INTEREST. pan left to help raise her last babies into adulthood. The study focused on why women and other female mammals have menopause at all, and why a woman's reproductive system takes early retirement when the rest of her body is humming right along. Those questions have long been puzzling, because evolu left to raise her last newborns. In fact, by focusing on her present kids and her grandchildren, a menopausal female in lions and menopause baboons, ecology professor Craig Packer of the University of Minnesota and colleagues elsewhere report in Thursday's the increase might actually number of her descendants who issue of the journal Nature. reach adulthood and reproduce, The presence of postsending her genes farther down menopausal grandmas made no the line, some researchers say. difference in how many offspring But the new work found no their daughters had or in how from well those offspring survived. such advantage tionary theory says organisms are driven to pass their genes on to future generations as often as possible. That makes menopause hard to explain. Some researchers have proposed that menopause might actually have given an advantage in ages past. 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