Did a burning oil spill wipe out the dinosaurs?

Sixty six million years ago, the dinosaurs suddenly disappeared, along with most of the species on the planet. The extinction occurred at precisely the same time that a giant asteroid struck the Earth. The fact that the two ...

Researchers find ancient Maya farms in Mexican wetlands

Archaeologists with the University of Cincinnati used the latest technology to find evidence suggesting ancient Maya people grew surplus crops to support an active trade with neighbors up and down the Yucatan Peninsula.

Ancient species of giant sloth discovered in Mexico

Mexican scientists said Wednesday they have discovered the fossilized remains of a previously unknown species of giant sloth that lived 10,000 years ago and died at the bottom of a sinkhole.

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