1. Preface: Evolution and Comparative Biology of the Mammary Gland

   • Karen Plaut
   • Kermit L. Carraway

   Preface Pages: 223 - 224

2. The Mammary Gland and Its Origin During Synapsid Evolution

   • Olav T. Oftedal

   OriginalPaper Pages: 225 - 252

3. The Origin of Lactation as a Water Source for Parchment-Shelled Eggs

   • Olav T. Oftedal

   OriginalPaper Pages: 253 - 266

4. The Evolutionary Origins of Maternal Calcium and Bone Metabolism During Lactation

   • John J. Wysolmerski

   OriginalPaper Pages: 267 - 276

5. Evolution of the Mammary Gland Defense System and the Ontogeny of the Immune System

   • Armond S. Goldman

   OriginalPaper Pages: 277 - 289

6. Growth Hormone and Prolactin—Molecular and Functional Evolution

   • Isabel A. Forsyth
   • Michael Wallis

   OriginalPaper Pages: 291 - 312

7. The Comparative Biology of Whey Proteins

   • Kaylene J. Simpson
   • Kevin R. Nicholas

   OriginalPaper Pages: 313 - 326

8. Multispecies Comparison of the Casein Gene Loci and Evolution of Casein Gene Family

   • Monique Rijnkels

   OriginalPaper Pages: 327 - 345

9. The Mammary Gland in Mammalian Evolution: A Brief Commentary on Some of the Concepts

   • Malcolm Peaker

   OriginalPaper Pages: 347 - 353

10. In Memoriam: Raymond R. Dils (1932–2002)

    • Isabel A. Forsyth

    Dedication Pages: 355 - 356