A five-month old boy from Shaoyang city in central China's Hunan Province was recently diagnosed at a local hospital as having tethered cord syndrome, a rare disorder caused by tissue attachments that causes abnormal stretching of the spinal cord and produced on this child what looks a human tail. Ahem, a human tail and that's all.
One in 100,000 people are estimated to suffer from the disease, and although it's relatively rare, it can develop into adulthood. Untethering surgeries are usually only performed if there are clinical signs of deterioration, according to AANS.org. It's unclear whether such an operation will be performed on the baby.