Explore the world of mammalian evolution and learn about the major lineages of mammals in The Phylogeny of Mammals.
The Harvard Museum of Comparative Zoology hosts a web site entitled Ichthyology in which the user can choose from information describing many topics on fish, such as ongoing research projects at the museum, collections, and a key of the freshwater fishes of Massachusetts.
Discover common myths about snakes and learn more about their evolution, ecology, and identification in More Information on Snakes.