- Table of Contents
- Acknowledgments
- Foreword
- Preface: Not Like Me
- Introduction
- Identical and Fraternal Twins: Living Laboratories, page 1
- Identical, but Not the Same: Differences Between Identical Twins, page 21
- Natural Experiments: Unusual Twin Types, page 36
- Developing in Tandem: Intelligence and Special Mental Skills, page 49
- Unfolding Lives: Personality Traits, Mental Disorders and Atypical Behaviors, page 70
- Friendship Extraordinaire: Twins' Special Relationship, page 97
- Twist of Fate: Twins Reared Apart, page 116
- Another Twist of Fate: Children Adopted Together, page 152
- Lonesome Crowd: Loss of a Twin, page 169
- Making Multiples: New Fertility Treatments and Beyond, page 187
- Two-Base Hits and Triple Toe Loops: Physical Growth and Athletic Prowess, page 208
- Noah's Ark: Twins in the Nonhuman Animal Kingdom, page 230
- The Other Half: Noteworthy Twins, page 247
- Double Indemnity: Twins in the Courtroom, page 278
- Separate Minds in Shared Bodies: Conjoined Twins, page 295
- Double Entendre: Twinship's Many Meanings, page 313
- Afterword: Part of Me 329
- Glossary 335
- Notes 338
- Index 387