The cave had multiple deep scratch marks across the ceiling. He later found hundreds of similar types of tunnels across ...

Beneath Brazil’s forests lie vast Ice Age tunnels, carved not by humans or nature, but giant ground sloths—revealing hidden ...

Huge ancient underground tunnels have been discovered in Brazil and Argentina, and the source of these huge structures is not believed to be due to humans or natural geological processes. Reaching ...

Pleistocene ground sloths constitute a remarkable and diverse group of xenarthran mammals that thrived across South America during a period of significant climatic and environmental flux. Their fossil ...

Giant sloths with razor-sharp claws and as large as Asian bull elephants once roamed the Earth, snacking on leaves at the tops of trees with a prehensile tongue. Now, scientists have figured out why ...

It's said that the Megatherium or related genera were herbivores and they existed during the Pleistocene epoch (8,000–10,000 ...