IVF helps families expand every year, but rare mishaps force people to make agonizing choices. IMPACT x Nightline: "Switched Before Birth" streams on Hulu this Thursday.
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Study Finds on MSNWhat Did Dinosaur Feathers Look Like? Scientists May Have Recreated Them in ChickensExplore the fascinating world of dinosaur feathers and their evolution through groundbreaking research on chicken embryos.
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