Bones of hunted mammoth show early human presence in Arctic

First demonstration of sexual selection in dinosaurs identified

New Seafloor Map Helps Scientists Find New Features

World’s largest canyon? Under the Antarctic ice sheet

Stone-age tools found, but who wielded them?

Ice sheets may be hiding vast reservoirs of powerful greenhouse gas

Expedition probes undersea magma system

New geological evidence aids tsunami hazard assessments from Alaska to Hawaii

Mountains west of Boulder continue to lose ice as climate warms

Northern Methane: Largest natural sources of this potent greenhouse gas

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