https://www.sciencedaily.com/releases/2021/02/210217151100.htm > Zooarchaeology -- the study of animal remains from archaeological sites -- has great potential to provide information on past human communities. Livestock preferences are known to have changed over time in Europe, but little is known about how much these changes are influenced by environmental, economic, or political conditions of ancient settlements. > In this study, Nieto-Espinet and colleagues gathered data from 101 archaeological sites across the northeastern Iberian Peninsula, ranging from the Late Bronze Age to Late Antiquity, a span of around 1700 years during which European cultural and agricultural practices underwent significant changes. At each site, they compared livestock remains with data on the local environment (including plant and climate data) and the economic and political conditions of the settlement.