Mothers more likely to have twins have heavier, healthier non-twin babies, possibly explaining why twinning evolved.
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A prolific cardiac research scientist, Bernadine Healy revolutionized the study and treatment of disease in women.
Most of the GOP presidential candidates would limit federal funding for human embryonic stem cell research.
Pro-evolution bumper stickers and emblems are being removed from the cars of biologists in Florida.
An antibody that binds 16 different flu viruses offers hope for the long-sought universal vaccine.
Like many fish and amphibians, the Guiana dolphin can sense low levels of electrical activity in the water—an ability not previously reported in true mammals.
People living in near the Earth’s poles, where days are often short and light often low, have larger eyes and visual cortices than those closer to the equator.
Non-African people carry remnants of the Neanderthal X chromosome, suggesting interbreeding with early human ancestors.
The number of human embryonic stem cells approved for federal funding continues to grow.
A watchdog group urges the US government to enact guidelines that would require federally-funded researchers to publically disclose financial interests.
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