What Giant Beasts Carved Out these South American Mega-Tunnels?

Immense tunnels found in the heart of the jungle in Brazil are thought to have been the den of a gruesome wild animal. Experts doubt that huge burrows were created by a natural geologic process and suggest that they are the creation of an ancient species of giant armadillos or ground sloth instead.

Gigantic Tunnels Discovered in Brazil are Not Nature’s Creation

According to scientists, the fact that the gigantic tunnels cannot be explained by any natural geologic process, as well as the enormous claw marks all over their walls, consolidates the theory that these tunnels were most likely carved out by an ancient species of giant sloth.

In 2010, Amilcar Adamy from the Brazilian Geological Survey, started scrutinizing the cave in Rondonia, western Brazil. Adamy’s goal was to connect the caves to some kind of natural process, but it didn’t take him too long to understand that such a thing would be historically and scientifically inaccurate. “I’d never seen anything like it before. It really grabbed my attention. It didn’t look natural,” Adamy told Discovery magazine.

Claw marks left in the tunnels. (Courtesy: Heinrich Frank)