The twin bond As any parent of twins will you tell and researchers have documented, twins bond with each other in special ways. This is especially true of identical twins who, after all, share the same genes. The special bond between twins often shows up in infancy. Baby twins may exhibit similar eating, sleeping, and behavior habits. They may tend to sleep at the same time and, unfortunately, awake and cry at the same time.
Some parents note that their infant twins seem to entertain each other while in their cribs.
Conversely, when separated some twins become easily upset. As twins become older, the special bond between them remains even as differences begin to emerge. Playing together is a key part of this bonding. Sometimes, twins develop their own unique language, with words and phrases that are only understandable to them. This is known as cryptophasia.