Home » The Pit Bull That Grows “Claws” Due To A Rare Birth Defect The Pit Bull That Grows “Claws” Due To A Rare Birth Defect September 16, 2016 Posted in LATEST STORIES Share: TwitterFacebookLinkedin When you first take a look at him, he looks exactly like any other Pit Bull out there. This 2 year old Pit Bull mix is affected by a rare birth defect called lobster claw syndrome but is also known by the name ectrodactyly. Pages: 1 2 3 4