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Commentators Bruce Ash and Paul Eckerstrom, plus substance abuse counselor Carole Bennett talking about one of Pima County's top medical issues, and archaeologist Gayle Hartmann on the book "Last Water on the Devil's Highway." Read more»

Oxidized copper can be seen on the bow of the ship.

A 200-year-old shipwreck has been found off the Gulf Coast. The ship is filled with glass bottles, ceramic plates and boxes of muskets. Read more»

Several ancient bowls were discovered beneath a rock ledge by Border Patrol agents in Organ Pipe Cactus National Monument.

Tucson Sector Border Patrol agents have discovered two sets of archaeological artifacts in the Organ Pipe Cactus National Monument since February. Read more»

Remember those Mayan heiroglyphics that were supposed to forecast the apocalypse for next year? Turns out somebody got the translation wrong. Oops. Read more» 3

The bone spear tip embedded in the 13,800-year-old rib of the Manis Mastodon is the oldest known weapon in America.

A spear tip embedded in a mastodon bone indicates that humans were hunting in North America 13,800 years ago – 800 years earlier than previously thought. Read more» 1

A view of the stone structure discovered at El Provenir after undergrowth has been cleared. Archaeologist Reina Duran belives it could have been a site where sacred rituals were performed by the Pregonero tribe.

Known as El Porvenir, this pre-Columbian indigenous site in a remote part of western Venezuela has never been truly examined by archaeologists. And now it looks like it may never be. The government plans to flood the valley in which it lies to create a hydroelectric dam. Read more»