Interesting thoughts about Polar Bear ranges in the Late Pleistocene.
Almost the entire present day range of the polar bear was uninhabitable for this species during most of the Ice Age. The ice was too thick then, even for species adapted to arctic conditions. Polar bear ranges shifted south. Favorable habitat existed between the mile high Laurentide Ice Sheet and the Atlantic Ocean, and polar bears likely wandered along a strip of the Atlantic Seaboard now submerged by rising sea level. I hypothesize they occurred as far south as what today is the continental shelf off the coast of South Carolina.
Map of North America during the Last Glacial Maximum. Polar bears probably ranged on a narrow strip of the Atlantic Seaboard off the coast of what’s now Nova Scotia and Maine to as far south as what today is South Carolina during the height of the Ice Age. Note the narrow strip of land between the ice sheet and the…
View original post 709 more words