Jerome Kagan, Who Tied Temperament to Biology, Dies at 92

Who's in this ocean? Tracking down species on the go using environmental DNA

Black adults in US who consume ultra-processed foods at greater risk for hypertension

DEA moves toward approving more research for Marijuana growers. 36 states now permit marijuana to be used medically, and 17 allow recreational use. Yet researchers who wish to study the drug’s health effects have been limited since 1968 to a single legal supplier of the drug.