Veiled by more than a mile of ice, an expanse of heavily scoured mountains and valleys in Greenland has remained out of sight until now.

A new year-round contraceptive pill called Lybrel, which eliminates menstrual cycles altogether, appears to be safe and effective, researchers report.

A new study shows that emotional sounds like laughter are contagious, producing a mirroring response in the listener?s brain.

Bacteria known to decorate caves are now found to help build and expand their dark homes by eating the walls.

The chances of a child developing a brain tumor and cancer elsewhere in the nervous system increase with the more younger brothers and sisters one has.

Researchers have dated the ape-man skeleton, known as ?Little Foot?, found in 1997 in Sterkfontein cave in South Africa to be precisely 2.2 million years old.