Full view of how bones and joints form in the first trimester uncovers cells and pathways that could help diagnose and treat skeletal conditions in the future.
Dave Einsel/Getty Images "As I turned it over, I saw the anatomy so distinctive of a human skeleton, of a human ancestor skeleton. And as I looked up the slope, I could see other parts of a ...
Fifty years ago, the discovery of a human ancestor "Lucy" generated worldwide attention. NPR's Scott Detrow speaks with paleoanthropologist Zeray Alemseged about the legacy of the discovery.