Nobody had looked at the ocean floor underneath a glacier before. Series of parallel ridges about 10 to 70 centimeters tall extended along the seafloor, regularly spaced from one another almost as if somebody had carved them. The ridges extended from the end of the glacier into the seafloor and ran parallel to the edge of the glacier. This is a part of the ocean that lacked any currents that could feasibly have sculpted these features.
