I SHALL pass lightly over the Permian and Triassic epochs, as being more nearly related in their organic forms to the Carboniferous epoch, with which we are already somewhat familiar, while in those ...

UC Riverside researchers have discovered a piece that was missing in previous descriptions of the way Earth recycles its ...

Geologists have calculated the age of Earth at 4.6 billion years. But for humans whose life span rarely reaches more than 100 years, how can we be so sure of that ancient date? It turns out the ...

How did humans become human? Understanding when, where and in what environmental conditions our early ancestors lived is ...

A few months into the third millennium, a group called the International Geosphere-Biosphere Programme (I.G.B.P.) held a meeting in Cuernavaca, Mexico. Among the researchers in attendance was Paul ...