Courtesy of Bournemouth University
Courtesy of Bournemouth University

Fossilized Footprints Show Ice Age Hunters Ganged Up on Giant Sloths

Courtesy of Bournemouth University
Courtesy of Bournemouth University

They just don't make sloths like they used to. Giant ground sloths from the Ice Age wielded razor-sharp claws and stood 7 feet tall, and new evidence suggests that humans—even children—stalked and hunted them.

By analyzing fossilized footprints found in the salt flats of New Mexico, researchers at Bournemouth University in the UK figured out how prehistoric humans managed to outsmart these furry behemoths. The tracks, which are between 10,000 and 15,000 years old, show two overlapping sets of footprints belonging to both man and beast. Researchers deduced that these early hunters aligned their footprints with the sloth's to avoid detection and sneak up on their prey. The findings were published in the journal Science Advances.

Human footprints inside of a larger sloth footprint
Courtesy of Matthew Bennett, Bournemouth University

"Getting two sets of fossil footprints that interact, that show you the behavioral ecology, is very, very rare," Matthew Bennett, one of the researchers at Bournemouth, told Reuters.

They also found another set of human footprints, leading researchers to believe that hunters traveled in packs and ganged up on the sloth, with one group distracting the animal from a safe distance while another attempted to land a fatal blow. The clue was in marks they dubbed "flailing circles," which suggested that the sloth rose on its hind legs and swung around to defend itself. Anywhere they found flailing circles, human footprints followed.

The presence of children's tracks also showed that hunting was a family affair, but it probably wasn't as fun (or as safe) as going to a modern-day zoo. The prints were taken from New Mexico's White Sands National Monument, which has the "largest concentration of human and Ice Age giant megafauna prints in the Americas," according to researchers. The remote part of the park where they conducted their research is not open to the public.

Modern sloths are related to the giant ground sloth, which went extinct about 11,000 years ago, likely due to over-hunting by humans, scientists say. The fossilized footprints were digitized and preserved for future research using 3D modeling techniques.

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Romano D’Agostini, Giorgio Cargnel, Soprintendenza Speciale di Roma
Utility Workers May Have Found One of Rome’s First Churches
Romano D’Agostini, Giorgio Cargnel, Soprintendenza Speciale di Roma
Romano D’Agostini, Giorgio Cargnel, Soprintendenza Speciale di Roma

The remains of what may have been one of Rome’s earliest Christian churches were accidentally discovered along the Tiber River during construction, The Local reports. The four-room structure, which could have been built as early as the 1st century CE, was unearthed by electrical technicians who were laying cables along the Ponte Milvio.

The newly discovered structure next to the river
Romano D’Agostini, Giorgio Cargnel, Soprintendenza Speciale di Roma

No one is sure what to make of this “archaeological enigma shrouded in mystery,” in the words of Rome’s Archaeological Superintendency. Although there’s no definitive theory as of yet, experts have a few ideas.

The use of colorful African marble for the floors and walls has led archaeologists to believe that the building probably served a prestigious—or perhaps holy—function as the villa of a noble family or as a Christian place of worship. Its proximity to an early cemetery spawned the latter theory, since it's common for churches to have mausoleums attached to them. Several tombs were found in that cemetery, including one containing the intact skeleton of a Roman man.

Marble flooring
Romano D’Agostini, Giorgio Cargnel, Soprintendenza Speciale di Roma

A tomb
Romano D’Agostini, Giorgio Cargnel, Soprintendenza Speciale di Roma1

The walls are made of brick, and the red, green, and beige marble had been imported from Sparta (Greece), Egypt, and present-day Tunisia, The Telegraph reports.

As The Local points out, it’s not all that unusual in Rome for archaeological discoveries to be made by unsuspecting people going about their day. Rome’s oldest aqueduct was found by Metro workers, and an ancient bath house and tombs were found during construction on a new church.

[h/t The Local]

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Alexis Pantos, University of Copenhagen
Scientists Just Found the Oldest Known Piece of Bread
Alexis Pantos, University of Copenhagen
Alexis Pantos, University of Copenhagen

An old, charred piece of long-forgotten flatbread has captured the interest of archaeologists, anthropologists, and historians around the world. Found in a stone fireplace in Jordan’s Black Desert, this proto-pita dates back 14,400 years, making it the oldest known example of bread, Reuters reports.

To put the significance of this discovery in context: the flatbread predates the advent of agriculture by 4000 years, leading researchers to theorize that the laborious process of making the bread from wild cereals may have inspired early hunter-gatherers to cultivate grain and save themselves a whole lot of trouble.

“We now have to assess whether there was a relationship between bread production and the origins of agriculture,” Amaia Arranz-Otaegui, a researcher with the University of Copenhagen, told Reuters. “It is possible that bread may have provided an incentive for people to take up plant cultivation and farming, if it became a desirable or much-sought-after food.”

A report on these findings—written by researchers from the University of Copenhagen, University College London, and University of Cambridge—was published in the journal Proceedings of the National Academy of Sciences.

It was once thought that bread was an invention of early farming civilizations. A 9100-year-old piece of bread from Turkey was previously regarded as the oldest of its kind. However, the Jordanian flatbread was made by a group of hunter-gatherers called the Natufians, who lived during a transitional period from nomadic to sedentary ways of life, at which time diets also started to change.

Similar to a pita, this unleavened bread was made from wild cereals akin to barley, einkorn, and oats. These were “ground, sieved, and kneaded prior to cooking,” according to a statement from the University of Copenhagen. The ancient recipe also called for tubers from an aquatic plant, which Arranz-Otaegui described as tasting “gritty and salty."

[h/t Reuters]

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