Archéologie et archéozoologie

Archaeology and archaeozoology, what is the difference? Aren't they parts of one common archaeology? Shouldn't "zoo-archaeo-logists" try to do more (zoo-) cultural history themselves? An important task for both groups is, to explain temporal and spatial variation of faunal spectra by integrated interpretation. This should not only be done with ecological and geographical arguments, but also by considering historical traditions of prehistoric societies.