News
- Health & Medicine
Pregnancy 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.
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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.
- Anthropology
Mexican 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.
- Paleontology
Sticky Subjects: Insights into ancient spider diet, kinship
Remnants of a spider web embedded in ancient amber suggest that some spiders' diets haven't changed much in millions of years.
