![]() ![]() ![]() So-called preformationists believed organisms developed from miniature versions of themselves. But not everyone cared for the idea of a sperm-and-egg collaboration. As early as 350 B.C., Aristotle proposed a theory of epigenesis-which was essentially correct. Prior to cell theory and the invention of the microscope, inquisitive minds engaged in quite a bit of guesswork over where babies come from. Reproduction wasn’t always a settled science. ![]()
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