Sphagnum latter being the slowly decaying matter underneath. Dried sphagnum moss is also used in northern Arctic regions as an insulating material. Anaerobic acidic sphagnum bogs have low rates of decay, and hence preserve plant fragments and pollen to allow reconstruction of past environments. They even preserve human bodies for millennia; examples of these preserved specimens are Tollund Man, Haraldskær Woman, Clonycavan Man and Lindow Man. Such bogs can also preserve human hair and clothing, one of the most noteworthy examples being Egtved Girl, Denmark. Because of the acidity of peat, however, bones are dissolved rather than preserved. These bogs have
Sphagnum fuscum Endangered species lists within some German states. Switzerland has labelled "S. fuscum" as vulnerable. In the United States, "S. fuscum" is reported to be at risk in the state of North Carolina. Across Europe, "S. fuscum’s" habitats are under protection. Germany and Switzerland have both placed the moss under “special protection.” This species is associated with "Sphagnum angustifolium", "S. fallax", "S. magellanicum", "S. papillosum", more infrequently with "S. teres", and "S. warnstorfii" in richer sites. "Sphagnum fuscum" is easily discernible from other species of Sphagnum, as it tends to be reddish brown in color, and is more likely to form