Researchers think undersea cliffs near Mexico may hold geological clues to the dinosaurs' demise. In March 2013, scientists used multi-beam sonars to create the first detailed map of the so-called Campeche Escarpment.
Researchers think undersea cliffs near Mexico may hold geological clues to the dinosaurs' demise. In March 2013, scientists used multi-beam sonars to create the first detailed map of the so-called Campeche Escarpment.
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