Study of ancient predators sheds light on how humans did -- or didn't -- find food

See The Exquisite New 100 Megapixel Photo Of Two Galaxies Merging 40 Million Light-Years From Us

Overturning Roe v. Wade Could Have Devastating Health and Financial Impacts, Landmark Study Showed

Study preserves memory in mice, offering promising new basis for active immunization against Alzheimer's disease