Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

We are all now connected by the Internet, like neurons in a giant brain.

 

Stephen Hawking

 

Scientists Disprove 'Ice Bridge' Theory of Human Migration

RATE THIS! +10
Posted in Science on 28th Apr, 2015 08:19 PM by AlexMuller
The widely accepted theory is that humans migrated from Siberia to Alaska by means of a "land bridge" that spanned the Bering Strait. However some researchers proposed that North America was first settled by Upper Paleolithic people from Europe, who moved from east to west through Greenland via a glacial "ice bridge."
 
Now, researchers at the University of Missouri and their colleagues have proven that the latter theory is simply not true. Until now, evidence of the ice bridge theory came from the Chesapeake Bay, where in the early 1970s fishermen aboard the Cinmar stumbled upon an ancient stone blade, along with pieces of a mastodon skeleton. And since radiocarbon dating cannot be done on inanimate objects, scientists just assumed that the blade and mastodon were from the same time period, dating back more than 22,000 years ago.
 
"For more than two decades, proponents of the ice bridge theory have pointed to similarities between North American stone blades such as the one allegedly dredged from the Chesapeake and blades left by Solutrean foragers in western Europe," Michael J. O'Brien, one of the researchers, explained in a statement. "We know, however, that Solutrean culture began around 22,000 to 17,000 years ago, which is later than North American dates pointed to by ice bridge theorists as proof that Solutrean people populated North America. That includes the date from the Cinmar mastodon."
 
The researchers blame the lack of first-hand accounts from the crew of the Cinmar, who actually recovered the blade and mastodon remains, for the belief in the ice bridge theory. "We reviewed countless snag reports from the Bay and the time frame when the snag should've occurred and didn't find anything to corroborate the story. One of the most famous snags of all time - when the crew pulled up a mastodon, and it's just not reported," O'Brien said.
 
Due to this error more than 40 decades ago, the ice bridge theory lived on, without any real evidence of its validity. In addition, while investigating the history of the recovered stone tool, the research team also found discrepancies with the origins and the ownership of the ship itself. They found that differences in photographs of the Cinmar, the size of the ship, and where it was assembled all point to contradictions in key pieces of the ice bridge theory.
 
"Until inaccuracies are cleared up, there really is no reason to accept the find as evidence of anything connected with the early peopling of North America," O'Brien concluded.

Tags: iceice bridgeanthropologyhistorysciencehumans

Read original article » Back to category

Comments



 

Recent headlines

  • Posted in Software on 2017-04-30 18:12:52
    Experts Assert That AI Will Be Replacing CEOs..read more
    Posted in Science on 2017-04-30 17:58:36
    Scientists think Facebook and Elon Musk are way too.....read more
    Posted in Medicine on 2017-04-30 17:52:58
    Non-O blood group 'linked to higher heart attack risk'..read more
    Posted in Business on 2017-04-29 13:25:52
    Google Is Becoming 'A.I. First'..read more
    Posted in Science on 2017-04-29 13:18:48
    SpaceX looks to break into national security launch.....read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    Nanoparticle vaccine shows potential as immunotherapy to fight.....read more
    Posted by AlexMuller
    Obesity is top cause of preventable life-years lost, study shows..read more
    Posted by AlexMuller
    Light can be utilized to control gene function..read more
    Posted by AlexMuller
    Brain stimulation restores memory during lapses, research shows..read more
    Posted by AlexMuller
    Wax worm caterpillar will eat plastic shopping bags: New.....read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me