Researchers Say They've Found the Ancient Dens of Giant Carnivorous Worms
Twenty million years ago, the shores of northern Taiwan were sandstone sediments at the bottom of the sea, where 6-foot-long worms lurked in their burrows, waiting for unsuspecting prey to pass overheard. Now, a team of geoscientists have chronicled 319 trace fossils of those carnivorous marine worms, whose dens...