<p>Siegfried F. Nadel (January 14, 1902 – June 4, 1988) was an Austrian-British anthropologist and ethologist who made significant contributions to the study of human behavior and social organization. He is best known for his research on the Nuer, a pastoralist ethnic group in Sudan, where he documented their social organization, religious practices, and economic system, in his book "Nuer Religion".</p><p></p><p>Nadel began his academic career at the University of Vienna, where he earned his Ph.D. in anthropology in 1927. He later worked at the London School of Economics, where he conducted extensive fieldwork in Africa, focusing on the study of human behavior and social organization.</p><p></p><p>In the 1930s, Nadel conducted fieldwork among the Nuer people in Sudan, where he documented their social organization, religious practices, and economic system. He published his findings in the book "Nuer Religion" in 1956, which is considered a classic in the field of anthropology. The book has been translated into several languages and continues to be widely read and cited by anthropologists, sociologists and other social scientists.</p><p></p><p>Nadel's research on the Nuer people helped to establish the study of pastoralist societies as an important subfield within anthropology, and his work on the Nuer religion continues to be influential in the study of religion and symbolism.</p><p></p><p>Nadel's contributions to the field of anthropology were groundbreaking and he was recognized for his contributions with several awards and honors. He was elected a Fellow of the British Academy, and was awarded the Rivers Memorial Medal by the Royal Anthropological Institute in 1982.</p><p></p><p>Siegfried F. Nadel was a pioneering anthropologist and ethologist whose research on the Nuer people helped to establish the study of pastoralist societies as an important subfield within anthropology. His work on the Nuer religion continues to be influential in the study of religion and symbolism. His ideas and techniques continue to shape the field of anthropology and his legacy continues to inspire and guide future generations of anthropologists.</p><p></p><p></p>