Stock photography, photos: science class Stock photos of High school two boys with guinea pig in science class Photograph: © Bill Bachmann Click for a larger image and more information Keywords associated with this stock photo: science, biology, anatomy, high school, school, boy, boys, two, class, classroom, guinea pig, rodent, animal, study, learn, learning, African-American, Negro, black, Caucasian, white, green, lab, laboratory, specimen