Drew's academic buildings feature a mix of Greek Revival, Collegiate Gothic, and neoclassical architecture on a campus that is a serene, wooded oasis in the middle of a bustling suburban town. The campus features the Drew Forest Preserve, an expanse that was recently restored with the planting of 1,100 native trees and shrubs by the university community and volunteer assistance from pharmaceutical manufacturer Pfizer (a large, local employer), the US Fish and Wildlife Service, the New Jersey Audubon Society. The university's campus also features the Florence and Robert Zuck Arboretum, named for two botany faculty members, containing a mixture of native and non-native trees, plants and two small glacial ponds supporting populations of turtles, goldfish, catfish, and muskrats, and various species of birds including migratory fowl such as Canada geese, ducks, and herons.