Giant tooth of ancient marine reptile discovered in Alps

The fossils of three ichthyosaurs—giant marine reptiles that patrolled primordial oceans—have been discovered high up in the Swiss Alps, and include the largest ever tooth found for the species, a study said Thursday.

Scientists scour 'Mexico's Galapagos' for quake, volcano clues

Could a volcanic eruption off Mexico's coast unleash a tsunami like the one that devastated Tonga? What really causes tectonic plates to shift and trigger earthquakes? Scientists visited a remote archipelago in search of ...

Radiometric dating sheds light on tectonic debate

At the far edges of continents, where the continental shelf transitions into the deep ocean, continental and oceanic plates come face to face. At many of these margins, the denser oceanic plate is pushed below the continental ...

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