University of Pennsylvania

New technique fills gaps in fossil record

University of Pennsylvania evolutionary biologists have resolved a long-standing paleontological problem by reconciling the fossil record of species diversity with modern DNA samples.

Sep 19, 2011
4.8 / 5 (5) 4 | with audio podcast

Gene therapy improves vision

German scientist Paul Ehrlich found what he coined the "magic bullet" in the early 20th century upon developing the world’s first effective treatment of syphilis.

Nov 23, 2009
4.8 / 5 (4) 0