A family who have a complicated history of inbreeding have been left with heart breaking genetic defects as a result of their incest relatives with some of them only being able to communicate through grunts and barks.
The Whittaker family from West Virginia, US can't remember much about their parents or other family members and were unaware their genetic issues were down to inbreeding.
Living sheltered away in the village of Odd, which is 75 miles from Charleston, some members of their clan are unable to properly speak and run away when outsiders try to talk to them, the Mirror reports.