Archaeologist in 1949: Libby's radiocarbon revolution

No — that is paleontology, a branch of geology and biology. Archaeology studies humans and their ancestors through the material they left behind: tools, buildings, bones, seeds, rubbish. The two fields overlap only at human evolution sites like Olduvai Gorge, where archaeologists and paleoanthropologists work side by side. The oldest archaeological material, stone tools from East Africa, is roughly 3 million years old; dinosaurs vanished 66 million years ago.

Do archaeologists keep what they find? No. In almost every country, excavated finds belong to the state, the landowner or a designated museum, and national antiquities laws — Egypt's since 1983, Greece's since 1834 — make keeping or selling them a crime. Professional codes of ethics, such as the Society for American Archaeology's, also bar members from trading in antiquities. The archaeologist's product is the record and the publication, not the objects.

Do you need a PhD to be an archaeologist? Only for university posts and for directing major research excavations. Most working archaeologists are employed in development-led work — cultural resource management in North America, commercial or rescue archaeology in Europe — where a bachelor's degree plus field school gets you onto a crew, and a master's degree is the usual threshold for supervisory roles. The doctorate matters mainly in the academic minority of the profession.