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A so-called "cathedral" mound produced by a termite colony. Structures built by non-human animals, often called animal architecture, [1] are common in many species. Examples of animal structures include termite mounds, ant hills, wasp and beehives, burrow complexes, beaver dams, elaborate nests of birds, and webs of spiders.
The earliest mounds are 'conical'; they are essentially bumps of earth - the simplest and arguably the most intuitive kind of burial. Successive conicals likely evolved into linear mounds. Bird mounds likely came next as modifying a linear mound to make a bird mound required only the addition of a head and a tail.
Some effigy mounds were constructed in the shapes or outlines of culturally significant animals. The most famous effigy mound, Serpent Mound in southern Ohio, ranges from 1 foot (0.30 m) to just over 3 feet (0.91 m) tall, 20 feet (6.1 m) wide, more than 1,330 feet (410 m) long, and shaped as an undulating serpent .
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Some of the mounds are 3 m (10 ft) tall and 10 m (33 ft) wide, and they are spaced about 20 m (66 ft) apart. Underneath the mounds are networks of tunnels that required the excavation of 10 cubic kilometres (2.4 cu mi) of dirt. Scientists performed radioactive dating on 11 mounds. The youngest mound was 690 years old.
Lidar-derived image of Marching Bears Mound Group, Effigy Mounds National Monument.. Prehistoric earthworks by mound builder cultures are common in the Midwest.However, mounds in the shape of mammals, birds, or reptiles, known as effigies, apparently were constructed primarily by peoples in what is now known as southern Wisconsin, northeast Iowa, and small parts of Minnesota and Illinois.
The Great Serpent Mound is a 1,348-feet-long (411 m), three-feet-high prehistoric effigy mound located in Peebles, Ohio.It was built on what is known as the Serpent Mound crater plateau, running along the Ohio Brush Creek in Adams County, Ohio.
A modern view of a medieval pillow mound at Stoke Poges, England. The most characteristic structure of the "cony-garth" ("rabbit-yard") [1] is the pillow mound.These were "pillow-like", oblong mounds with flat tops, frequently described as being "cigar-shaped", and sometimes arranged like the letter E or into more extensive, interconnected rows.