Smithsonian researchers have linked discoveries within Arizona’s Petrified Forest National Park with a previously unknown ...

A new study published in Proceedings of the National Academy of Sciences solves a long-standing climate mystery: Why don't ...

It is apparent that Pleistocene members of the genus Homo, from at least two examples in the Early Pleistocene to an abundance of cases in the Late Pleistocene, sustained and survived an elevated ...

The Cambrian Explosion is a landmark moment in the history of life on Earth when many of the major groups of animals first ...

Oxygen isotope analyses of foraminiferal tests in deep-sea cores have been interpreted as showing that the temperature of seawater in the Caribbean and equatorial Atlantic varied by as much as 6 ...

Earth’s major climate goal is too warm for the polar ice sheets, study says If Earth stays at its current levels of warming — below policymakers’ goal of 1.5 degrees Celsius — polar ice ...