Animal Systems Vertebrates Denver Museum of Nature and Science (Discussion of fossils, vertebrates, etc.) http://www.dmns.org/denverbasin2/fossil/vert.html The Worldwide Museum of Natural History (Scroll down to Vertebrate Life Galleries) http://www.wmnh.com/wmhome.htm History Fifth Grade Students create "Fossils Under the Ground" site http://library.thinkquest.org/J002743/5kcm.html Vertebrate Fossils: http://library.thinkquest.org/J002743/5kcm-2.html Introduction to Vertebrates - University of California at Berkeley (higher reading level) http://www.ucmp.berkeley.edu/vertebrates/vertintro.html Vertebrates Online Unit [Link]http://oncampus.richmond.edu/academics/as/education/projects/webunits/vertebrates/facts.html Learn basic facts about the five classes of vertebrates, and info about specific kinds of animals within each class.