Conjoined twins Krista and Tatiana have stunned the world's medical experts by seeing through each other's eyes.
The pretty four-year-old twins have two separate bodies but share the same brain.
The girls have a conjoined thalamus, the part of the brain that sends physical sensations and motor functions to the cerebral cortex, allowing them to hear each other's thoughts and see through each other's eyes.

http://www.dailymail.co.uk/news/article-1331769/Doctors-stunned-conjoine...