Scientists Found These Massive Tunnels – Then Realized They Were Dug By Giant Prehistoric Beasts

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Image: IBGS Research Group, Stephen Hasiotis
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For one, it isn’t just the size of the caves that’s strange; indeed, their composition is nothing like that of other caverns which have been discovered in the region. The floors are smooth, while the tunnels are round. And scientists have inspected other caves in the area that were created by water and can see that they’re completely different. Then there are the marks on the walls.

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