Double take: The Lying Game and other shows about identical twins.
Dorothy Burlingham’s Twins: Remembering the seminal psychological study.
Part 2: The Zygosity Test Results Arrive
Part 1: Russ Is My Identical Twin. At Least, That's What We've Always Said …
The methodological confusion of twin studies.
Cryptophasia: The secrets of twin speak.
Twins: A Slate special issue.
Confessions of a twin obsessive.
The double stroller: a brief history.
Parasitic twins and other half-formed siblings.
Are twins taking over? The dramatic rise in multiple births.