Below are images which display the progressive deglaciation of the Atlantic Canada region. The first image gives an idea of how Newfoundland was completely covered during the Wisconsin glaciation (at its' maximum extent). This image is followed by the successive timeline ranging from 21,000 years to present, which is indicated by the last image. In general, where glaciation occurs, glaciers retain a large portion of water which causes sea levels to be reduced. Consequently, more land is able to be exposed as can be seen by the Grand Banks (which is currently submerged) in the second image below. It is theorized that there was no vegetative life on this exposed land mass as it was mostly covered by glacial ice.