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Unexplained Giant Tunnels Found—Largest Burrowing Land Ever Mapped
In southern Brazil and northern Argentina, scientists have discovered massive underground tunnels stretching for hundreds of ...
SAO PAULO (AP) — Sloths weren’t always slow-moving, furry tree-dwellers. Their prehistoric ancestors were huge — up to 4 tons (3.6 metric tons) — and when startled, they brandished immense claws. For ...
This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. SAO PAULO (AP) — Sloths weren’t always ...
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