Massive Tunnels Found In The Jungle Were Actually Created By A Chilling Prehistoric Creature

Ten thousand years ago, the Earth looked like a much different place than our present-day environment. This is backed by the numerous discoveries about our planet’s past by archaeologists and other researchers. In Brazil, experts found a tunnel system that highlights this concept. The caves are lined with scratch marks and peculiar carvings from the claws of a giant beast, which confused scientists for decades. Were huge clawed animals really scouring the planet so recently?

Ancient Caves

These tunnels are between 8,000-10,000 years old. Initially, it seemed like a group of ancient humans made the enormous cave system as a way to cut through the dense vegetation that made the Brazilian forest hard to navigate. Experts soon learned that wasn't the case.

Taking His Own Look

They were found by modern scientists in the 1930s who believed they were created through a geological process. It wasn’t until 2010 that geologist Amilcar Adamy from the Brazilian Geological Survey decided to investigate this cave system for himself.

Not Natural

Amilcar’s original goal for his exploration trip was to determine which geologic process made the tunnels, but his intentions shifted when he examined the caves. "I'd never seen anything like it before," Amilcar (below) said. "It really grabbed my attention. It didn't look natural."

Another Cave

Amilcar couldn’t match any processes with the structures. While he was studying his findings, Heinrich Frank from the Federal University of Rio Grande do Sul in Brazil found another unnatural-looking cave in Novo Hamburgo. This wasn’t his only find.