claim: Species distribution can be understood through factors such as continental drift and extinction.
evidence: Catlin Township is a township in Vermilion County , Illinois , USA .. Township. Civil township. Illinois. Illinois. County. List of counties in Illinois. Vermilion. Vermilion County, Illinois. township. Civil township. Vermilion County. Vermilion County, Illinois. USA. United States. As of the 2010 census , its population was 3,300 and it contained 1,342 housing units .. United States Census, 2010