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Huge tunnels discovered that were not made by humans or geology (www.earth.com)
submitted 10 months ago by to c/science@lemmy.world
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...Many of the passages are longer than 600 yards (550 meters) and tall enough for an adult to walk through without bending.

The leading idea is that giant, extinct ground sloths dug these colossal shelters, turning parts of South America into a maze of underground homes...

...the tunnel walls are packed with claw marks, sometimes in three parallel grooves, right where a digging limb would bite into rock...

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[–] 13 points 10 months ago*

I recently read that these specific sloths evolved into transgender hermaphrodites which ultimately led to their extinction. They've actually traced their rise and fall to the implementation of space lazers causing massive flooding around the world. Funny how history repeats itself.

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