Too Many Males: A Fast Lane to Extinction?
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In this National Geographic News article, read about a study suggesting that having too many males of one species could lead to more sexual aggression toward females and, ultimately, extinction. Researchers studying lizards have shown that an excess of males will cause populations to plummet as the survival and fertility of female lizards drop dramatically. Links to other stories, photos, videos and Web sites are also found on this page.
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