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Post #430123 by tulsatv on Thu, Jan 22, 2009 10:18 PM

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Today from the science blog, Not Exactly Rocket Science: http://scienceblogs.com/notrocketscience

"Bacteria and languages reveal how people spread through the Pacific"

http://tinyurl.com/czo7z9

"The area collectively known as Austronesia covers half the globe. It stretches from South-East Asia and Taiwan, across New Guinea and New Zealand, to the hundreds of small islands dotted around the Pacific. Today, it is home to about 400 million people.

"They are the descendants of early humans who spread throughout the Pacific in prehistoric times. These forebears are long dead but they left several unexpectedly important legacies that are evident in their modern descendants. The languages they used evolved and splintered into over 1,200 tongues spoken by modern Austronesians. The bacteria in their bodies did the same, giving rise to distinct strains in different parts of the region.

"Two new studies have used these very different hitchhikers - one cultural and one biological - to piece together the routes of this ancient mass migration. And they have come to the same general conclusion.

"The Austronesian people originated in Taiwan some 5,000 years ago. After a few centuries of settlement, they started a massive pulse of migration, spreading southwards and eastwards. They moved to the Philippines, dispersed across South-East Asia, and spread as far west as Madagascar and as far east as the Micronesian islands. They reached Fiji and other islands in Western Polynesia about 3,000 years ago and there, they paused again. About 1,500 years ago, they started a second big migration pulse that took them east across the Pacific all the way to Easter Island."

[ Edited by: tulsatv 2009-01-22 22:21 ]