Category Archives: Paleolithic

Food, Facial Structure, and “F”

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From Science (hat tip: Funk Heritage Center):

When humans switched to processed foods after the spread of agriculture, they put less wear and tear on their teeth. That changed the growth of their jaws, giving adults the overbites normal in children. Within a few thousand years, those slight overbites made it easy for people in farming cultures to fire off sounds like “f” and “v,” opening a world of new words.

The newly favored consonants, known as labiodentals, helped spur the diversification of languages in Europe and Asia at least 4000 years ago… according to linguist and senior author Balthasar Bickel at the University of Zurich in Switzerland. The paper shows “that a cultural shift can change our biology in such a way that it affects our language,” says evolutionary morphologist Noreen Von Cramon-Taubadel of the University at Buffalo, part of the State University of New York system, who was not part of the study.

Postdocs Damián Blasi and Steven Moran in Bickel’s lab set out to test an idea proposed by the late American linguist Charles Hockett. He noted in 1985 that the languages of hunter-gatherers lacked labiodentals, and conjectured that their diet was partly responsible: Chewing gritty, fibrous foods puts force on the growing jaw bone and wears down molars. In response, the lower jaw grows larger, and the molars erupt farther and drift forward on the protruding lower jaw, so that the upper and lower teeth align. That edge-to-edge bite makes it harder to push the upper jaw forward to touch the lower lip, which is required to pronounce labiodentals. But other linguists rejected the idea, and Blasi says he, Moran, and their colleagues “expected to prove Hockett wrong.”

First, the six researchers used computer modeling to show that with an overbite, producing labiodentals takes 29% less effort than with an edge-to-edge bite. Then, they scrutinized the world’s languages and found that hunter-gatherer languages have only about one-fourth as many labiodentals as languages from farming societies. Finally, they looked at the relationships among languages, and found that labiodentals can spread quickly, so that the sounds could go from being rare to common in the 8000 years since the widespread adoption of agriculture and new food processing methods such as grinding grain into flour.

Bickel suggests that as more adults developed overbites, they accidentally began to use “f” and “v” more. In ancient India and Rome, labiodentals may have been a mark of status, signaling a softer diet and wealth, he says. Those consonants also spread through other language groups; today, they appear in 76% of Indo-European languages.

Linguist Nicholas Evans of Australian National University in Canberra finds the study’s “multimethod approach to the problem” convincing. Ian Maddieson, an emeritus linguist at the University of New Mexico in Albuquerque, isn’t sure researchers tallied the labiodentals correctly but agrees that the study shows external factors like diet can alter the sounds of speech.

The findings also suggest our facility with f-words comes at a cost. As we lost our ancestral edge-to-edge bite, “we got new sounds but maybe it wasn’t so great for us,” Moran says. “Our lower jaws are shorter, we have impacted wisdom teeth, more crowding—and cavities.”

Links, Various

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• The Conversation: “How the extinction of ice age mammals may have forced us to invent civilisation”

Why did we take so long to invent civilisation? Modern Homo sapiens first evolved roughly 250,000 to 350,000 years ago. But initial steps towards civilisation – harvesting, then domestication of crop plants – began only around 10,000 years ago, with the first civilisations appearing 6,400 years ago.

For 95% of our species’ history, we didn’t farm, create large settlements or complex political hierarchies. We lived in small, nomadic bands, hunting and gathering. Then, something changed.

We transitioned from hunter-gatherer life to plant harvesting, then cultivation and, finally, cities. Strikingly, this transition happened only after the ice age megafauna – mammoths, giant ground sloths, giant deer and horses – disappeared. The reasons humans began farming still remain unclear, but the disappearance of the animals we depended on for food may have forced our culture to evolve.

• New York Times: “Marvin Creamer, a Mariner Who Sailed Like the Ancients, Dies at 104”

It is daunting enough to circumnavigate the Earth with the aid of modern global positioning technology, much less with medieval and Renaissance tools like a mariner’s compass and sextant.

But Professor Creamer, in the grip of an obsession that had held him for years, shunned even those newfangled contrivances, as well as a radio, a clock and a wristwatch.He chose instead to rely on his deep knowledge of the planet and its vagaries, and be guided by nothing more than wind, waves, the sun by day, and the moon and stars by night.

Under cloud-massed skies, he could divine his location from the color and temperature of the water, the presence of particular birds and insects and even, on one occasion, the song of a squeaky hatch.

Skills like these, he long maintained, had let the master mariners of antiquity answer the seafarer’s ever-present, life-or-death question — Where am I? — and in so doing sail safely round the world.

“From everything I’ve read, the ancients didn’t feel uncomfortable out there,” Professor Creamer told The New York Times in 1978. “They didn’t have navigational tools, but they didn’t seem afraid to go to sea. I felt they might have known what they were doing, that they might have made predictable landfalls and having once hit a coast could have returned there.”

• Newsmax: “‘Mystery Is Over’ Regarding Lost Colony of Roanoke”

The English colonists who came to what became known as the “Lost Colony” never actually disappeared, according to a new book.

Rather, they went to live with their native friends, the Croatoans of Hatteras, The Virginian-Pilot reports.

“They were never lost,” said author Scott Dawson, who has researched records and dug up artifacts where the colonists lived with the Indians in the 16th century. “It was made up. The mystery is over.”

Dawson’s book, The Lost Colony and Hatteras Island, which was published in June, highlights his research.

• We Are the Mighty: “The last shots of the American Civil War were fired in Russia”

Historians don’t talk much about naval action during the Civil War, certainly not as much as they do about the ground combat. If it’s not about a riverboat, the Monitor and the Merrimack, or damning torpedoes, it just doesn’t get the same attention.

The CSS Shenandoah did a lot of things worth talking about.

Her flag was the last Confederate flag to be lowered and she was the ship that took the Civil War to the global stage, looting and burning Union merchant shipping from Africa to India to Russia and back.

She took 38 prizes and more than a thousand prisoners, some of them joining the Confederate ship.

Shenandoah was built by the British. A fast, steam-powered screw ship, the Brits transferred her to a Confederate skeleton crew under Capt. James Waddell off the coast of Africa. From there, Shenandoah terrorized American ships in sea lanes around the Cape of Good Hope, through the Pacific, and into the Bering Sea off Alaska.

At the time, however, Alaska belonged to the Russian Czar. And the Czar was friend to the United States. When Shenandoah began burning American whaling fleets in his territory, the Czar was not at all pleased.

Even after the Civil War was over, Shenandoah continued her Pacific rampage. The skipper just didn’t believe Lee’s surrender ended the war, even when American whaling captains told him so.

Pretty soon, he was the only Confederate still fighting. So he moved to shell the defenseless city of San Francisco. It was on his way to California that he met a British ship who confirmed the news: The Confederacy was gone and the captain and crew of the Shenandoah were going to be tried and hanged.

With every Navy in the world looking for Shenandoah and a hefty bounty on his head, Capt. Waddell disguised the ship, stowed its weaponry, and made a mad dash for Great Britain – the long way around.

Younger Dryas and Gobekli Tepe

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Interesting new theory: a comet killed off the wooly mammoth – and impelled the rise of civilization!

Experts at the University of Edinburgh analysed mysterious symbols carved onto stone pillars at Gobekli Tepe in southern Turkey, to find out if they could be linked to constellations.

The markings suggest that a swarm of comet fragments hit Earth at the exact same time that a mini-ice age struck, changing the entire course of human history.

Scientists have speculated for decades that a comet could be behind the sudden fall in temperature during a period known as the Younger Dryas. But recently the theory appeared to have been debunked by new dating of meteor craters in North America where the comet is thought to have struck.

However, when engineers studied animal carvings made on a pillar – known as the vulture stone – at Gobekli Tepe they discovered that the creatures were actually astronomical symbols which represented constellations and the comet.

Using a computer programme to show where the constellations would have appeared above Turkey thousands of years ago, they were able to pinpoint the comet strike to 10,950 BC, the exact time the Younger Dryas begins according to ice core data from Greenland.

The Younger Dryas is viewed as a crucial period for humanity, as it roughly coincides with the emergence of agriculture and the first Neolithic civilisations.

Before the strike, vast areas of wild wheat and barley had allowed nomadic hunters in the Middle East to establish permanent base camps. But the difficult climate conditions following the impact forced communities to come together and work out new ways of maintaining the crops, through watering and selective breeding. Thus farming began, allowing the rise of the first towns. 

Emphasis added. There’s more at the link. Gobekli Tepe has been noticed earlier on this blog.