Our ancestors were making tools out of bones 1.5 million years ago, winding back the clock for this important moment in human ...

While chronological age is easily measured, it fails to capture the complex biological processes that determine the rate of aging. A new proteomic aging clock may predict biological age, mortality ...

Our ancestors were making tools out of bones 1.5 million years ago, winding back the clock for this important moment in human evolution by more than a million years, a study said Wednesday. Ancient ...