Archaeology relies on correlations with other fields like the natural sciences. Artifacts must be analyzed with knowledge of geology, zoology, botany, and palynology to understand the environment and human interactions. Geological studies provide climate context. Zooarchaeology and archaeobotany reveal past diets, economies, and seasons from animal and plant remains. Physical anthropology aids the study of early human evolution and anatomy. Archaeology also correlates with social sciences for holistic cultural reconstructions.