▲ 173 ▼ Huge tunnels discovered that were not made by humans or geology (www.earth.com) submitted 10 months ago by Delta_V@lemmy.world to c/science@lemmy.world 44 comments fedilink hide all child comments ...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...
[–] altphoto@lemmy.today 2 points 10 months ago (1 child) Could have been south American flying kangaroos. permalink fedilink source hideshow 1 child comment replies: [–] IndridCold@lemmy.ca 2 points 10 months ago Don't be silly. Everyone knows the South American Flying Kangaroo made nests in tall trees from the bones of their victims. permalink fedilink source parent
[–] IndridCold@lemmy.ca 2 points 10 months ago Don't be silly. Everyone knows the South American Flying Kangaroo made nests in tall trees from the bones of their victims. permalink fedilink source parent