Scientists have revealed that two continent-size regions in Earth's deep mantle have distinctive histories and resulting chemical composition, in contrast to the common assumption they are the same. A ...

Far beneath the waves of the southwest Pacific, scientists have finished charting a landmass so large and so coherent that it now stands beside Africa, Asia and the rest as a full-fledged continent.

The megaraptorid fossil points to how evolution changed dramatically after Gondwana's split into multiple continents.