Massive Tunnels That Were Dug By A Giant Sloth That Lived 10,000 Years Ago

Most of us know massive tunnels were built by humans. But, this massive tunnel were which scientists think were dug by a giant sloth, discovered in Brazil. Giant mamals lived 10,000 years ago. This gigantic tunnels called “palaeoburrows”.These enormous tunnels can measure up to 2,000 feet long and over six feet tall. These caves was relatively unknown until a Brazilian geologist noticed something while driving down the highway.

Many of these tunnels stretch for hundreds of feet and have numerous branches, and the largest one is a whopping 2,000 feet long, six feet tall and up to five feet wide. "In these burrows, sometimes you get the feeling that there's some creature waiting around the next curve – that's how much it feels like a prehistoric animal den, " Frank wrote. Eventually, he did find enough evidence to convince him that the paleoburrows were most probably dug by the giant ground sloth, the second-largest prehistoric land mammal next to the mammoth. The primary evidence is the deep claw marks found by Frank on the walls of paleoburrows, like the ones you see on the first picture above. Most scientists now agree that they could only have been made by a giant ground sloth (Megatherium), and not by smaller giant armadillos as some others have suggested. Image credit: Rodolfo Nogueira / Source