Warm-blooded animals use large quantities of energy to maintain body temperature because of heat loss through the body suface. In fact, biologists believe that the primary energy drain on a resting warm-blooded animal is the maintenance of body temparature.
Choose either #2 (Heart Rate of Birds) or #3 (Heart Rate of Mammals), page 119, and construct a model relating blood flow through the heart to body weight. You may discuss this problem with others in the class. If you do most of the work of this project together with your group, you may turn in a group report.
An interesting related article, "On Being the Right Size," by J. B. S. Haldane, can be found in The World of Mathematics, volume 2, edited by James R. Newman. (Copies of The World of Mathematics are available in the Classroom Computer Lab as well as in the Cardinal Stritch University Library.)
Follow the Project Report Format given in the first project assignment. You may want to look at some of the winning papers from the Mathematical Modeling Contest which are published in the Fall issue of the UMAP Journal for some general examples of the style for your paper.