<P> Zooarchaeology (or archaeozoology) is the study of faunal remains . Faunal remains are the items left behind when an animal dies . It includes: bones, shells, hair, chitin, scales, hides, proteins and DNA . Of these items, bones and shells are the ones that occur most frequently at archaeological sites where faunal remains can be found . Most of the time, most of the faunal remains do not survive . They often decompose or break because of various circumstances . This can cause difficulties in identifying the remains and interpreting their significance . </P> <P> The development of zooarchaeology in Eastern North America can be broken up into three different periods . The first being the Formative period starting around the 1860s, the second being the Systematization period beginning in the early 1950s, and the Integration period which began about 1969 . Full - time zooarchaeologists didn't come about until the Systematization period . Before that it was just a technique that was applied but not specifically studied . </P>

Archaeologists who analyze faunal remains are commonly known as
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