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Small settlements and the scourge of slavery left gaps in Africa’s archaeological record. Yet sites and artifacts are revealing clues to the continent’s more recent history. An archaeologist explains the findings and threats to this heritage.
Can genetically modified animals help ease the shortage of organs? After years of research into xenotransplantation, the field is at a turning point — yet risks and ethical issues remain.
Australia’s iconic marsupial has been viewed as a food source, pest, mascot and, now, a conservation concern. Scientists are breaking down myths — using genetics, robots and citizen science — and finding new ways to protect the animals.
Polygenic risk scores — a patient’s chance, based on tiny DNA variants, of developing cardiovascular disease, breast cancer and more — are coming to clinics. But there are kinks to iron out and accuracy remains an issue.
Many colleges and universities stopped requiring the SAT and ACT during Covid. Will they go back to testing in the future? Select: (a) Yes (b) No (c) Depends (d) Not enough information.
OPINION: Many Americans say they won’t take a vaccine. I am not one of <br xmlns="http://pub2web.metastore.ingenta.com/ns/"/>them — and I have the shots to prove it.
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