A Tribute to C. Richard Taylor Ewald R. Weibel and Liana Bolis; A life with animals: from cat to fish Liana Bolis; 1. Symmorphosis and optimization of biological design: introduction and questions Ewald R. Weibel; 2. How much structure is enough? Knut Schmidt-Nielsen, Steven Vogel, Jared M. Diamond and R. McNeil Alexander; 3. Evolution of optimal systems Malcolm S. Gordon, Theodore Garland, Jr, Martin E. Feder and Robert E. Ricklefs; 4. Bone design and biomechanics Simon Maddrell, Pieter Dullemeijer, Andrew A. Biewener, Daniel E. Lieberman and Alfred W. Crompton; 5. Muscles and locomotion James W. Glasheen, Dirk Pette, Robert S. Staron, H. Lee Sweeney, Lawrence C. Rome, Thomas J. Roberts and Daniel Weihs; 6. Design of cells for metabolism Stan L. Lindstedt, Paul A. Srere, Peter W. Hochachka, Keven E. Conley and Raul K. Suarez; 7. Lungs and gills for gas exchange Pierre Dejours, Connie C. W. Hsia, John N. Maina, Edwin W. Taylor and David Randall; 8. Nutrient supply system Amiram Shkolnik, Kimberly A. Hammond, Ian D. Hume, Reinhold R. Hofmann and Wolfgang Wieser; 9. Integrative systems for oxygen and fuel delivery Ricardo Martinez-Ruiz, James H. Jones, Jean-Michel Weber, Hans Hoppeler, Yvon Le Maho and Mohamed Bnouham; 10. Design of nervous systems Richard D. Keynes, Simon B. Laughlin and Eviatar Nevo; 11. How good is best? Some afterthoughts on symmorphosis and optimization Ewald R. Weibel; Index.