Little was known about the sloth-dug tunnels before this point and since their initial discovery, Frank and his team of researchers have found more than 1,500 tunnels in Rio Grande do Sul area alone. LA train tunnel diggers find fossilised hip bone of giant 1,500 pound sloth that roamed the area 11,000 years ago By Associated Press 02:45 02 Jun 2017, updated 21:46 02 Jun 2017 48 shares LOS ANGELES (AP) — Crews digging a tunnel for a new Los Angeles train line have found the remains of an ancient giant sloth. There are thousands of huge tunnels in the northern part of South America. In the tunnel-like caves, INAH researchers have discovered human bones, and the bones of elephant-like creatures, giant sloths, bears, tigers, and extinct species of horses, now-extinct plants … "Thankfully, a glance at the walls quickly clears the mystery - massive claw marks line the walls and ceilings of the tunnels. Some are simple shafts while others are complicated works of underground engineering, with branching passages that twist and turn to form networks—the longest stretching 130 feet from end to end. American ground sloths from the extinct Lestodon genus. By Andrew Moseman. The discovery of this giant sloth death pit is revealing a virtual Bible of new evolutionary facts. In fact they're estimated to be at least 8,000 to 10,000 years old. At first, no know geologic process could explain how these tunnels were made. Scientists believe they either were dug by ancient giant sloths or ancient armadillos. In South America, giant sloths—some the size of elephants—roamed the surface, and were, perhaps, expert tunnel diggers. The Metropolitan Transportation Authority says a fossilized hip joint was discovered on May 16 in a layer of sandy clay 16 feet below a … LOS ANGELES (AP) — Crews digging a tunnel for a new Los Angeles train line have found the remains of an ancient giant sloth. The sloth remains included a 27,000-year-old tooth, arm bone, and leg bone. Thankfully, a glance at the walls quickly clears the mystery — massive claw marks line the walls and ceilings of the tunnels. The sloth remains included a 27,000-year-old tooth, arm bone, and leg bone. Later, scientists realized giant ground sloths led a subterranean lifestyle, using their large, powerful claws to dig. The one competing source of tunneling was likely another Ice Age giant, the Holmesina armadillo. The Metropolitan Transportation Authority says a fossilized hip joint was discovered on May 16 in a layer of sandy clay 16 feet below a major thoroughfare where the new rail line is being built. For the first time in thousands of years, sacred Mayan underwater tunnels in Mexico's Yucatan are being rediscovered, say researchers from Mexico's National Anthropology and History Institute (INAH). Tunnels excavated by giant sloths in ancient South America still exist today. Mar 30, 2017 ... not by one or two giant sloths. These giant sloths went extinct between 14,000 and 10,000 years ago. Crews digging a tunnel for a new Los Angeles train line have found the remains of an ancient giant sloth whose species grew up to 10 feet in length and weighed up to 1,500 pounds. Now scientists have concluded that an ancient species of giant sloth excavated the tunnels. April 20, 2017. “The biggest giant armadillo had a body width of 80 centimeters, while the tunnels reach widths of 1.4 meters and in addition, the ceiling is full of scratches “I personally believe they were excavated by land sloths, a group of mammals that became extinct in that area about 10,000 years ago,” says Frank. LOS ANGELES — Crews digging a tunnel for a new Los Angeles train line have found the remains of an ancient giant sloth. But despite these creatures stretching up to 4.6 metres (15 feet) and weighing roughly 2,590 kg (5,709 pounds), a single ground sloth would have spent much of its lifespan dedicated entirely to constructing tunnels as large and extensive as the palaeoburrows are. These tunnels are impressive, some are over 2 m (6.5 ft.) wide, 1.5 m (5 ft.) high and up to 30 m (100 ft.) long. Tags biology extinct animal giant sloth mammals natural world prehistoric creature prehistoric mammal Science Some are simple shafts while others are complicated works of underground engineering, with branching passages that twist and turn to form networks—the longest stretching 130 feet from end to end. The giant armadillo, the largest existing member of its family, weighs between 65 and 90 pounds and is native to South America. Moreover, the sheer size of the tunnels cannot possibly be made by any “giant” armadillos or sloths – at least, ones that we know of. Image: S. Rae/Flickr. Gideon Long, Santiago. Fossils found by workers digging a tunnel for a new railway line in Los Angeles have been identified as the remains of a giant sloth and a bison. Crews digging a tunnel for a new Los Angeles train line have found the remains of an ancient giant sloth. And yeah they argue a bit about what kind of animal it could be. Researchers have known about these tunnels since at least the 1930s, but back then, they were considered to be some kind of archaeological structure ― remains of caves carved out by our ancient ancestors, perhaps. They weighed more than an adult elephant. SIGNATURE: The evidence left behind by the cave's creators (Image: HEINRICH FRANK) Amilcar Adamy from the Brazilian Geological Survey investigated the cave in Rondonia, western Brazil, in 2010. Monday April 17 2017, 12.00am, The Times. Giant ground sloths like Eremotherium were built for burrowing. His specialty are the Giant Sloth tunnels of which he has found many, though most belong to extinct giant armadillos, some are too large to have been dug out by them, and must have been excavated by giant sloths. However, its burrows are about 16 inches in diameter, and only up to 20 feet long. Don’t ever call sloths lazy again. The fossilized remains of 22 Ice Age, elephant sized sloths have been found preserved in 20,000-year-old asphalt in Ecuador. Ancient, giant sloths are the prime suspect behind the creation of these paleoburrows." LOS ANGELES (AP) — Crews digging a tunnel for a new Los Angeles train line have found the remains of an ancient giant sloth. (Credit: Wikimedia Commons) ( Image Source ) According to Frank, the mega tunnels measuring upto 5 feet in diameter, were dug by ground sloths. And no one's sure why they dug them. Digging a 2,000-foot-long, five-foot-wide burrow required moving about 4,000 metric tons of dirt and rock. Later, scientists realized giant ground sloths led a subterranean lifestyle, using their large, powerful claws to dig. http://undergroundworldnews.comDeep inside Brazil, there are tunnels large enough for a person to walk through. These giant sloths went extinct between 14,000 and 10,000 years ago. These large, furry herbivores lived for about 5.3 million years and went into […] But near the town of Novo Hamburgo, Brazil, there are tunnels large enough to drive a car in that were dug by neither - instead, these are the work of ancient, giant sloths. And why bother? However, due to the massive claw marks that line the walls and the ceilings, it is now believed that an extinct species of giant ground sloth is behind some of these tunnels (known as palaeoburrows). Massive caves in southern Brazil are actually ancient ground sloth burrows Usually, tunnels are made either by human engineers or flowing water. They weighed more than an adult elephant. There Are Huge Tunnels in South America Dug By Extinct Giant Sloths. Previous ideas about the tunnels have included everything from mythical monsters to ancient lava tubes, but none of hold up against the handy-work of a huge ground sloth. Tunnels excavated by giant sloths in ancient South America still exist today. A sloth bone found by crews digging a tunnel for a new Los Angeles train line appears to be the remains of an ancient giant sloth. Ancient sloths dug Brazil’s giant tunnels. The Giant Ground Sloth, also known as the Megatherium, was a genus of enormous rhino-sized ground sloths (as opposed to the modern-day tiny tree sloths) that were indigenous to South America and migrated and spread across the entire continent of North America. Creation of these paleoburrows. engineers or flowing water size of elephants—roamed the surface, only. 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