A biosignature is any characteristic, element, molecule, substance or feature that serves as evidence for past or present life. It must be something that cannot be produced without life. Some examples ...

Researchers say recently discovered teeth come from a previously undiscovered species of Australopithecus, adding to our understanding of human evolution.

Challenging conventional medical wisdom, Israeli scientists found that scar tissue formation in the heart occurs through two distinct mechanisms — a discovery that could lead to new and more targeted ...