Erlandson, the UO professor, believes seafaring people followed a "kelp highway" from coastal Asia across the Arctic and down the West Coast, using the same technology to exploit the nearly identical marine and coastal resources along the way.
Other scientists scoffed when Carl Gustafson claimed that Stone Age people were hunting mastodons 14,000 years ago in the Northwest -- a millennium before the appearance of the Clovis-style stone tools widely regarded as the signature of the first Americans.
Gustafson found mastodon remains including a rib with a foreign piece of bone embedded in it near Sequim, Wash., in 1977.
Researchers figure it had to penetrate more than ten inches of muscle and tissue before piercing the rib.
Chemical analysis of DNA and protein extracted from the spear point show that it was fashioned from mastodon bone.
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Sign up now and start browsing pictures of Sequim gay single men. Gustafson thinks the animal had collapsed on its side in shallow water when struck with the bone projectile, which entered at a downward angle to the animal's back.His crew found the right half of the mastodon – the bones with marks of butchery – a few feet away at a place that would have been upslope from the bog where the animal died.Gustafson didn't expect to find much when he arrived.Quentin Mackie of the University of Victoria calls the confirmation of the pre-Clovis mastodon kill "a major game-changer" for understanding the first peopling of the Americas.A bowling alley owner named Manny Manis found the tusks while digging a pond in his front yard.