This heatmap anination shows the concentration of known deep-sea dives with visual observations in the North Atlantic.

Between about 12,000 to 6,000 years ago, spreading at the Mid-Atlantic Ocean Ridge, which sits between the North American and Eurasian plates ... processes like seafloor spreading and continental ...

New research, however, suggests this drift can speed up or slow down ... have also affected the horizontal motion of North America and the Mid-Atlantic Ocean Ridge. The thaw may also have had ...