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Previously, genetic analysis had indicated that the ancestors of Native Americans left Siberia to migrate across ancient Beringia (the strip of land that once connected Asia and what's now Alaska) about 25,000 years ago, but the earliest evidence of human habitation on North America dates to 15,000 years ago. With ice covering much of Alaska, the ancestors of Native Americans might've lived in Beringia for about 10,000 years before moving on. Now linguistic evidence may help support that theory. A pair of linguistics researchers, Mark Sicoli and Gary Holton, recently analyzed languages from North American Na-Dene family (traditionally spoken in Alaska, Canada and parts of the present-day U.S.) and the Asian Yeneseian family (spoken thousands of miles away, in central Siberia), using similarities and differences between the languages to construct a language family tree. As they note in an article published today in PLOS ONE, they found that the two language families are indeed related-and both appear to descend from an ancestral language that can be traced to the Beringia region. Both Siberia and North America, it seems, were settled by the descendants of a community that lived in Beringia for some time. In other words, Sicoli says, "this makes it look like Beringia wasn't simply a bridge, but actually a homeland-a refuge, where people could build a life."

"Facebook, YouTube and even texting will be the salvation of many of the world's endangered languages, scientists believe. Of the 7,000 or so languages spoken on Earth today, about half are expected to be extinct by the century's end. ... Tuvan, an indigenous tongue spoken by nomadic peoples in Siberia and Mongolia, even has an iPhone app to teach the pronunciation of words to new students. 'It's what I like to call the flipside of globalisation' [said K David Harrison] ... 'Everything that people know about the planet, about plants, animals, about how to live sustainably, the polar ice caps, the different ecosystems that humans have survived in - all this knowledge is encoded in human cultures and languages, whereas only a tiny fraction of it is encoded in the scientific literature.'"

"For years, the Web's lingua franca was English. ... For many tiny, endangered languages, digital technology has [now] become a lifeline. ... Whether a language lives or dies, says K. David Harrison, an associate professor of linguistics at Swarthmore College, is a choice made by 6-year-olds. And what makes a 6-year-old want to learn a language is being able to use it in everyday life. ... Though most of the world's languages have no written form, people are beginning to transliterate their mother tongues into the alphabet of a national language. Now they can text in the language they grew up speaking. Harrison tells of traveling in Siberia, where he met a truck driver who devised his own system for writing the endangered Chulym language, using the Cyrillic alphabet. ... Africa is the world's fastest-growing cellphone market. Texting allows farmers to check crop prices. ... for hundreds of heritage languages, a four-inch bar of plastic and battery and motherboard is the future of the past."