fox squirrel, fox squirrels, squirrels, squirrel, tree squirrel, oak tree, acorn, nut, nuts, acorns, Sciurus niger, search, searching, horizontal, wildlife, mammal, animal, mammals, animals, rodents, arboreal rodent, arboreal, fauna, rodent, tree squirrel, North America, photo, photos, photograph, photographs, image, images, stock, of, agency, leesonphoto