Fig. 3From: Using Inquiry and Tree-Thinking to “March Through the Animal Phyla”: Teaching Introductory Comparative Biology in an Evolutionary ContextPhotographs of the skeletons of the opossum (a), dog (b), rat (c), cat (d), and rabbit (e). These skeletons were used by the students to explore the basis of characters and help learn how to build and interpret a taxon/character state matrixBack to article page