A Manatee County utilities crew was surprised to find a giant ground sloth fossil while digging a trench for a water line.

Many thousands of years ago, the Sarasota-Manatee area was home to a diverse mix of now-extinct mammals—most notably, saber-tooth cats, mastodons and giant ground sloths called Megatherium, which ...

If large creatures like elephants, giraffes and bison are allowed to thrive, they could alter habitats that allow for the ...

The giant ground sloth was given its scientific name, Megalonyx jeffersonii, by Jefferson, the US’s third president, in 1797 after some fossils belonging to the extinct beast were found in a ...

The bulk that kept giant sloths warm and saved them from local predators made them a target of Earth's most voracious predator: us. Their numbers dropped off massively once humans arrived in North ...

Scientists have analyzed ancient DNA and compared more than 400 fossils from 17 natural history museums to figure out how and why extinct sloths got so big.

Scientists have uncovered evidence of ancient humans engaged in a deadly face-off with a giant sloth, showing for the first time how our ancestors might have tackled such a formidable prey.

“We know we’ve found Giant Ground Sloth by its distinctive tooth,” said Chris Ringstaff, project planner with TxDOT’s environmental affairs division. “We’re here to get the road built.

Thaís Pansani holding a giant sloth rib bone from central Brazil, thought to be burned by human fire about 13,000 to 15,000 years ago, in Smithsonian’s collection AP ...

“We know we’ve found Giant Ground Sloth by its distinctive tooth,” said Chris Ringstaff, project planner with TxDOT’s environmental affairs division. “We’re here to get the road built.

“We know we’ve found Giant Ground Sloth by its distinctive tooth,” said Chris Ringstaff, project planner with TxDOT’s environmental affairs division. “We’re here to get the road built.