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Alzheimer’s marker yields blood test
Studies in mice suggest that it could be possible to screen blood for early, asymptomatic Alzheimer's disease.
By Janet Raloff -
AnimalsEgg Shell Game
Birds apparently cheat chance when it comes to laying eggs that contain sons or daughters.
By Susan Milius -
PhysicsThe Hunt for Antihelium
Scientists have been searching about 30 years for a single nucleus of helium made from antimatter, and although the discovery would imply that whole antimatter galaxies exist, the researchers' time could be running out.
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