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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 ...
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.Video above: ...
Ponsani studies the fossils of giant sloths that were found in an archaeological site in central Brazil called Santalina. The bones date from *** time before people supposedly arrived, but some seem ...
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