Limestone mesas dominate the foreground, the pale strata angling skyward above what, even by West Texas standards, is a rough dirt road. Above the mesas, higher still, is the Sierra Vieja, red ...

Researchers have extracted remnants of DNA from an unlikely source: the desiccated dung of an extinct ground sloth that lived in Nevada at the height of the last ice age. The feat is the first ...

Though the Shasta ground sloth went extinct approximately 12,000 years ago, we know their diet included Joshua trees because preserved sloth dung found in caves contained seeds, leaves and fruits of ...

With a monkey-like head and Lon Chaney Jr.’s overbite, it crashes through the forest, a fanged pied piper trailing a prehistoric stench and an army of dung beetles. Get too close, and you’ll become ...

The giant ground sloth (Nothrotheriops shastensis) is an ancient relative of living tree sloths, armadillos and anteaters. It lived during the Pleistocene Epoch (2.58 million years ago – 12,000 years ...