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Health & MedicinePregnancy risk from blood pressure drugs?
Babies exposed in the first trimester of their mother's pregnancy to blood pressure drugs called ACE inhibitors are at an increased risk of birth defects.
By Nathan Seppa -
Cells in bloodstream don’t refill ovaries
Contrary to a report published last year, cells that circulate in a female mammal's blood don't seem to restock its egg supplies.
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AstronomyGalactic de Gustibus
About 13 billion years after its birth, our galaxy is still packing on the stars.
By Ron Cowen -
AnthropologyMexican find reveals ancient dental work
A 4,500-year-old human skeleton found in Mexico represents the earliest instance in the Americas of intentionally modified teeth, apparently to create space for a ceremonial mouthpiece.