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Study Looks At The Rare Evolution That Took The Ancestors Of Mammals Out Of The Sea And Back Again

Evolution takes some weird twists and turns to bring animals to their current forms. While evolution is based on random mutations and passing on traits that aid in survival, that does not mean that a ...
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Scientists claim 'Lucy' may not be our direct ancestor after all, stoking fierce debate

Recent fossil finds could mean that "Lucy" wasn't our direct ancestor, some scientists say. Others strongly disagree.