Archaeologists investigate historic and prehistoric sites and physical remains to understand human links to the past and to preserve past cultures. Archaeologists find clues about the past. They use a variety of extraction or digging techniques. Equipment like trowels, pick-axes, and even bulldozers help archaeologists coordinate and participate in fieldwork to attempt to unearth artifacts, such as pottery, ancient tools, seeds, or animal bones.
Archaeologists are also responsible for the conservation of the artifacts they recover. This usually involves bringing the items back to a lab to clean, restore, and stabilize them properly. Data collection is another key duty of the archaeologist. Before, during, and after the dig, the archaeologist records notes, images, soil samples, maps, measurements, and other information about the archaeological site. Archaeologists not only to find information but to use it to educate. Many archaeologists are professors and are involved in publishing and teaching.