Huge underground tunnels found in South America were not made by humans; footprints point to an animal
Massive underground tunnels discovered across South America are not human-made. Scientists now believe extinct giant ground sloths dug these extensive structures. These palaeoburrows, found in Brazil, Argentina, and Uruguay, reveal the significant environmental engineering role of megafauna. Fossilised footprints confirm these giant sloths as the builders, changing our understanding of ancient ecosystems.
Massive underground tunnels discovered across South America are not human-made. Scientists now believe extinct giant ground sloths dug these extensive structures. These palaeoburrows, found in Brazil, Argentina, and Uruguay, reveal the significant environmental engineering role of megafauna. Fossilised footprints confirm these giant sloths as the builders, changing our understanding of ancient ecosystems.
