Although leaves can be seen in many different textures and sizes, typically a leaf is a thin, dorsiventrally flattened organ, borne above ground and specialized for photosynthesis.
As of the 2010 census, Kalamazoo had a total population of  74,262. Kalamazoo is the major city of the Kalamazoo-Portage Metropolitan Statistical Area, which has a population of 335,340 as of 2015.[6] Kalamazoo is equidistant from the major American cities of Chicago and Detroit, each less than 150 miles away.
By 1860, Kalamazoo County's population had reached twenty-five thousand, and its county seat was Michigan's fifth largest town. Kalamazoo's first major industry was agriculture. During the early 1840s, David Walbridge operated a barge system that transported the county's produce to the mouth of the Kalamazoo River.