More carbs in our diet helped harmful oral microbes to succeed.

Bones reveal that ancient human relatives were part-time tree dwellers.

A web program creates disease maps to track epidemics.

Paying attention stimulates brain cells that improve memory.

Fossils explain where and when close relatives in our family tree coexisted.

Our health depends on trillions of microbes living in our bodies.

Fossil gives scientists a heads-up on the origin of flexible infant skulls.

Scientists connect a superbug’s resistance to antibiotic-laced livestock feed.

Twitter provided real-time data on a cholera outbreak in Haiti.

A keen sense of smell may have given humans an edge in brain development.