English: The science of trasology studies traces of mechanical influences, in particular on bones. Traces on the bones from incisions with flint knives and knives made of bronze (or iron) - significantly different. In the Neolithic, flint fragments and articles were used to cut meat from prey. Usually, such incisions are frequent and shallow, which is clearly visible in the photo. Residents of the early Neolithic site of Cherkasska-III caught and ate marsh turtles, whose meat was cleaned of bones and shells. In addition to the fact that, thanks to trasology, a specialist can determine what exactly caused the damage, it is sometimes possible to determine the material of the tool, how and for what purpose it was done.

English: Trasology. Traces of incisions on the marsh turtle carapace with a flint knife. Neolithic, archeological site of Cherkasska-III, 2012.