Researchers in Costa Rica have unearthed fossils from a mastodon and a giant sloth that lived as many as 40,000 years ago, officials announced Friday, calling it the biggest such find here in decades.

Researchers at the Museo Nacional de Costa Rica have confirmed a major paleontological find in the province of Cartago: fossil remains from a mastodon-like creature and a giant ground sloth. This ...

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A massive campaign is under way to install a permanent towering American flag over the heart of Ground Zero — with the help of TV’s “The Fixer’’ billionaire Marcus Lemonis. The erecting of the giant ...