Researchers solve a Colorado River mystery

A team led by University of Oregon geologist Rebecca Dorsey has published two papers that provide new insights into the origins of the Colorado River, using data from ancient sedimentary deposits located east of the San Andreas ...

300 million-year-old 'supershark' fossils found in Texas

Even before the age of dinosaurs, big toothy predators were roaming Texas. 300 million years ago, during a time called the Carboniferous, the area surrounding what is now Dallas, Texas was flooded by a shallow sea. Fossils ...

Great white shark choked by sea lion

A great white shark that washed up on an Australian beach this week had a sea lion stuck in its throat which likely caused its death, fisheries officials said Thursday.

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