Free and open to the public, it starts at 2:00 pm tomorrow afternoon, Sunday, May 21, 2017, at the Sioux City Lewis and Clark Interpretive Center / Betty Strong Encounter Center. It's an excellent educational facility at 900 Larsen Park Road in Sioux City (Exit 149 off I-29).
Roy R. Behrens, Professor of Art and Distinguished Scholar, teaches graphic design and design history at the University of Northern Iowa. He is internationally-known for his publications about art, design and the history of camouflage. The author of eight books and hundreds of published articles, he has appeared in films and interviews on NOVA, National Public Radio, 99% Invisible, Australian Public Television, BBC and IPTV. His most recent book is Frank Lloyd Wright and Mason City: Architectural Heart of the Prairie (2016).
Stuart Guthrie, Faces in the Clouds. New York: Oxford University Press, 1993, p. 49—
…natural selection has produced highly camouflaged and practically invisible animals in every environment. A tawny, countershaded (darker above, lighter below) coyote walking on a tawny Colorado slope, for example, recently disappeared before my eyes merely by pausing and then reappeared simply by walking again.