The Coastal Route: The Role of the Pacific Northwest Coastline in Facilitating Human Travel into the Americas

How Homo sapiens first entered North America has historically been attributed to a crossing of Beringia and a subsequent movement south through an ice-free corridor in Canada. Biological and physical research of the history of the area suggests an ice free corridor could not have existed in the same time frame as the first human settlements. These biological constraints would not have been present along the North West coast of the continent. New archaeological discoveries show early human settlement along the North West coast. Used together, this new evidence supports a coastal human migration instead of an inland route into North America

Drawing the Line: Ancient Hominins and the Species Question

he present paper asserts that groups such as Neandertals and Denisovans should be considered subspecies of H. sapiens. This contention is based upon the biological species concept and the fact that these groups interbred to create viable offspring. It is also stated that introgression from these groups made several positive contributions to the evolution of H. sapiens and their genome that may have served to promote the persistence of H. sapiens in Eurasia