Biogeographical regions of marine organisms, i.e., their distribution across different habitats, often overlap well with the major global ocean currents. The geological age of the currents plays a ...

Lava flows, near mile-thick glaciers and ice age floods layered and carved up this landscape.

Rocks are books for geologists and right now we’re missing the book (on the Hadean). The Nuvvuagittuq Greenstone Belt would ...