This 8 page document is part of a teacher written textbook for Zoology. Students will learn about chordates and fish through a witty and engaging read that uses humor to connect to students. Includes an in depth discussion of the evolution of chordates from their ancestors. Also includes a discussion of the evolution of fish.
Keywords: Zoology, evolution, fish, phylogeny, chordata, chordates, vertebrata, agnatha, myxini, hagfish, hyperoartia, lampreys, placodermi, placoderms, chondrichthyes