Question: What open canopy ecosystem is the principal exhibit of The Cape May County Park & Zoo?
Sentence (from "Cape May, New Jersey"): As of the 2010 United States Census, the city had a year-round population of 3,607, reflecting a decline of 427 (-10.6%) from the 4,034 counted in the 2000 Census, which had in turn declined by 634 (-13.6%) from the 4,668 counted in the 1990 Census.
Relevant evidence: No