A rapid climate collapse during the Late Ordovician Mass Extinction devastated ocean life and reshuffled Earth’s ecosystems.

It may have fewer than many of the other sciences, but biology does have two dozen or so “rules”—broad generalizations about the behavior or nature and evolution. Now, USC researchers want to add a ...

Fifty years after a fossil skeleton of Australopithecus afarensis was unearthed in Ethiopia, we know so much more about how this iconic species lived and died. When you purchase through links on our ...