Bog Bodies

At www.usatoday.com/tech/science/columnist/vergano/2011-01-16-bog-bodies_N.htm it seems that some 560 bog bodies have been found just in Denmark as a result of wetland drainage schemes. Acids found in bogs have mummified some of the bodies, even the clothes. In most instances only the bones have been preserved. The author lists a variety of theories as to why bodies were deposited in such places.