All identical twins can tell tales of mistaken identity, but some share a psychic connection that goes beyond their mystifying mirror image. Sometimes, reports of so-called twin telepathy get downright eerie.

Do twins have special communication?

About 40% of twins, generally monozygotic or identical twins, will develop some form of autonomous language, using nicknames, gestures, abbreviations, or terminology that they only use with each other. While parents and siblings can often discern the meaning, the twins generally don't use the terms with others.

Can twins be attracted to each other?

In a 1983 review of the scholarly literature on twin homosexuality and twin incest, Ray Bixler concluded that "most same-sex homosexual twins, if reared with their co-twins, do not attempt or even want to seduce them in adulthood".