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‘Treasure trove’ of ancient footprints found near African volcano

Tuesday, October 11, 2016 10:56
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On the shoreline of Tanzania’s Lake Natron, scientists have recognized and cataloged a particularly rare find: a large set of well-preserved human footprints left behind between 5,000 and 19,000 years ago.

Scientists found more than 400 footprints in an area bigger than a tennis court, covering the dark gray mudflat of Engare Sero. No other location in Africa has as many ancient human footprints-making it a remarkable find for researchers trying to understand the earliest days of modern humans.

Prints like these can tell scientists a lot about ancient humans (Credit: Creative Commons)

Prints like these can tell scientists a lot about ancient humans (Credit: Creative Commons)

A few of the tracks appear to show people jogging through the mud, running a 12-minute-mile pace or faster. Other prints indicate a person with a somewhat strange, potentially broken big toe. Even more tracks show that about a dozen people, mainly women and children, journeyed across the mudflat together, traveling the southwest for an unknown destination. The mud recorded it all-including the muddy drops that fell from their feet with each and every step.

“The first time we went out there, I remember getting out of the vehicle, and I teared up a little bit,” Cynthia Liutkus-Pierce, an Appalachian State University geologist, told National Geographic. “Human origins is a huge interest of mine: where we came from, and why we are who we are. It was definitely emotional to see our own history in this.”

Many Different Kinds of Prints

The discovery is particularly exciting because of the large quantity and variety of prints, which provide a amazingly detailed picture of what life was like for our African ancestors.

“It’s a very complicated site,” said William Harcourt-Smith, a paleoanthropologist at the City University of New York. “There’s one area where there are so many prints, we’ve nicknamed it the ‘dance hall,’ because I’ve never seen so many prints in one place. It’s completely nuts.”

Within hours or days, the mud’s exterior dried up, conserving the prints in a broken crust. A flow of debris buried the footprints a minimum of 10,000 to 12,000 years ago, storing them for later discovery.

A shell discovered in the mud over the footprints made it easier for the team to figure out the youngest possible end of the date range, eventually placing the prints at somewhere between 5,000 and 19,100 years old.


Image credit: National Geographic/Robert Clark

The post ‘Treasure trove’ of ancient footprints found near African volcano appeared first on Redorbit.
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