refers to a terminating program of a given size that produces the most output possible. Much of the early economy of New Netherland was based on the beaver fur trade. As such, the seal of New Netherland featured the beaver; likewise, the coats of arms of Albany, New York and New York City included the beaver. See also Beaver in the Sierra Nevada References Further reading Dugmore, A. Radclyffe (1914). The Romance of the Beaver; being the history of the beaver in the western hemisphere. Illustrated with photographs from life and drawings by the author. Publisher: Philadelphia, J.B. Lippincott company; London, W. Heinemann (a searchable facsimile at the University of Georgia Libraries) External links Leave It To Beavers, PBS video documentary online Ecology of the Beaver "Worth a Dam" (beaver information and educational site) The Beaver A Keystone Species, a short video by Mike Foster Video Eager Beavers Take on Climate Change: Restoring Nature's Engineers in Utah by Grand Canyon Trust North American Beaver Mammals of North America National symbols of Canada Symbols of Oregon Symbols of New York (state) Fur trade North American beaver Taxa named by Heinrich Kuhl Fauna of the Rocky Mountains Fauna of the United States