The average armadillo measures around 75cm in length, including the tail but the giant armadillo can grow to more than 1.5m long and the miniature pink fairy armadillo (the smallest armadillo species) only gets to around 10cm in length.
Anna Garlin Spencer, nearly forgotten today, was, in her time, considered among the foremost theorists about the family and women. She published Woman's Share in Social Culture in 1913.
Other classical theorists of sociology from the late 19th and early 20th centuries include W. E. B. Du Bois, Elizabeth Cady Stanton, Karl Marx, Dorothy Swaine Thomas, W. I. Thomas, Ferdinand Toennies, Emile Durkheim, Vilfredo Pareto, Virginia Woolf, George Herbert Mead, and Max Weber.