Dr. Albert R. Shadle (1885–1963) was an American biologist noted for his research into porcupines and beavers. From 1919 until 1953, Shadle served as chairman of the biology department, and was instrumental in the advancement of science education, at the State University of New York at Buffalo. He also acted as a professor of biology whose pupils included noted entomologist Maynard Jack Ramsay.
1957: Sizes of Beaver Chips Cut from Aspen1956: Parturition in a Skunk, Mephitis mephitis hudsonica1955: Removal of Foreign Quills by Porcupines1955: Pelage of the Porcupine, Erethizon dorsatum dorsatum1954: Osteologic Criteria of Age in Beavers1953: Gross Anatomy of the Male Reproductive System of the Porcupine1950: Feeding, Care, and Handling of Captive Porcupines (Erethizon)1949: Rate of Penetration of a Porcupine Spine1948: Gestation Period in the Porcupine, Erethizon dorsatum dorsatum1946: The Sex Reactions of Porcupines (Erethizon d. dorsatum) before and after Copulation1943: An Unusual Porcupine Parturition and Development of the Young1943: Comparison of Tree Cuttings of Six Beaver Colonies in Allegany State Park, New York1939: Fifteen Months of Beaver Work at Allegany State Park, N. Y.1936: The Attrition and Extrusive Growth of the Four Major Incisor Teeth of Domestic Rabbits1930: An Unusual Case of Parturition in a Beaver1953: Captive Striped Skunk Produces Two Litters1946: Copulation in the Porcupine1943: Reforestation of Aspen after Complete Cutting by Beavers1942: The Deer of Allegany State Park, New York1955: Effects of Porcupine Quills in Humans (The American Naturalist; ISSN 0003-0147)1954: Sizes of Wood Cuttings Handled by Beavers (American Midland Naturalist; ISSN 0003-0031)1939: Craspedacusta Again in Western New York (Transactions of the American Microscopical Society; ISSN 0003-0023)1935: A Zipper Tube for Holding Small Live Animals (Science; ISSN 0036-8075) 