Biology 4 kids
Biology4 Kids: Quiz: Mammals
Take this ten-question review quiz over the Class Mammalia. Read more about each question after an incorrect answer is given.
Wikimedia
Wikipedia: Mammal
Wikipedia, an open-source encyclopedia, provides great information on mammals. Content includes a look at mammal characteristics, origins, classification, and more.
Regents of the University of Michigan
Animal Diversity Web: Mammalia
For an overview of the anatomy and characteristics of mammals, visit this Animal Diversity Website. Discusses characteristics not found in other animals, the function of their hair, and their production of milk.
PBS
Nh Pbs: Nature Works: American Bison
Can you name any characteristics specific to the American Bison? This site provides information pertaining to this magnificent mammal. Find out about reproduction, habitat, food, behavior, sounds they make, and more when you explore this...
Yale University
Yale New Haven Teachers Institute: Animal Kingdom
Background information about all of the classes of the animal kingdom, followed by four short lesson plan outlines.