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Particle PhysicsHow a proton gets its spin is surprisingly complicated
Pinning down the source of protons’ spin is surprisingly hard to do.
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PaleontologySaber-toothed cats were fierce and family-oriented
New details shift the debate on whether Smilodon lived and hunted in packs, and answer questions about other behaviors and abilities.
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NeuroscienceWomen have a new weapon against postpartum depression, but it’s costly
The newly approved drug brexanolone simulates a natural hormone to alleviate symptoms of postpartum depression.
By Jeremy Rehm -
Health & MedicineU.S. fentanyl deaths are rising fastest among African-Americans
New statistics on fentanyl-related overdoses show troubling increases in deaths among African-Americans, Hispanics and men.