Researchers have discovered huge landforms deep beneath the North Sea that suggest the region was swallowed by a giant ice sheet toward the middle of the last ice age.
The scientists captured these landforms in "clear and amazing" detail buried under 0.6 miles (1 kilometer) of mud, Christine Batchelor, a senior lecturer in physical geography at Newcastle University in the U.K. and co-author of a new study describing the landforms, told Live Science.
