Gut microbe study reveals that ancient diets suited our bodies better.
Beneficial gene enables Tibetans to thrive at high altitudes.
Evolutionary biology helps scientists fight malaria.
Scientists chart new asteroid territory in order to understand the early Solar System.
Overfishing has altered Namibia's coastal waters--but a native fish is keeping them productive.
A rock collected by the Apollo 17 mission in 1972 yields a surprise.
Beyond oil-coated pelicans, the spill imperils many lesser-known species.
What's the recipe for living a very long life?
Visit Alaska's boreal forest to learn its role in Earth's climate.
The Swift satellite, NASA's high-energy detector, is studying black hole mysteries.