Huge tunnels under southern Brazil and northern Argentina were potentially made by giant, Ice Age sloths for refuge and rest ...

Beneath the rolling hills of southern Brazil and northern Argentina, an extraordinary discovery has stunned scientists: giant ...

Massive underground tunnels discovered across South America are not human-made. Scientists now believe extinct giant ground ...

Deep beneath the hillsides and suburbs of Brazil, there are tunnels so vast and regular that they look like abandoned subway ...

SANTA CRUZ — During the last ice age, known as the Pleistocene, Santa Cruz County was a wild place populated with ancient humans and larger-than-life creatures, or megafauna, such as mastodons and ...

Although it sounds like a grade-B science fiction movie, fossils show that our ancestors once hunted and fought giant ground sloths. For the first time, scientists have uncovered fossilized footprints ...

It's implausible that any megafauna survived the sudden onset of the Ice Age, even in the Southern Hemisphere. If any did, it's a small part of the story. The 'scientists' get their bogus carbon ...