Conjoined twins have long been the subject of great curiosity due in part to the rarity of the condition. Not to mention, many different ways exist for siblings to become anatomically connected to one another. Fueled by that curiosity, a Soviet physiologist named Pyotr Anokhin - who studied the development and structure of human circulatory and nervous systems - made Masha and Dasha Krivoshlyapova the focus of many of his science experiments - experiments that were conducted for the majority of their lives.
These USSR-approved experiments on conjoined twins subjected the sisters to torture, isolation, and a life greatly lacking in typical human interactions. Adding to the complexity of Masha and Dasha Krivoshlyapova's situation, the sisters had diametrically clashing personalities - one showing the traits of a psychopath and the other an empath.
The Twins Shared A Circulatory System, But Not A Nervous System
Scientists Effectively Tortured The Girls Under The Guise Of Experimentation
Video Documentation Of The Experiments The Girls Were Subjected To Exists
Masha Displayed Many Personality Traits Consistent With Psychopathy
Dasha Was An Empath Who Longed To Live A Normal Life
Masha Was Verbally And Physically Abusive To Her Twin