High Quality Content by WIKIPEDIA articles! Bog bodies, also known as bog people, are preserved human bodies found in sphagnum bogs in Northern Europe, Great Britain and Ireland. Unlike most ancient human remains, bog bodies have retained their skin and internal organs due to the unusual conditions of the surrounding area. These conditions include highly acidic water, cold temperature, and a lack of oxygen, combining to preserve but severely tan their skin. Although their skin is preserved, their bones are generally not, as the acid in the peat dissolves the calcium phosphate of bone. Some of the bodies retain intricate details like tattoos and fingerprints. Fingerprint expert C.H. Vogelius Andersen was astonished to find that Grauballe Man's hand prints were clearer than his own. The stubble and facial features of Tollund Man are particularly well preserved.