A facial deformity known as "Habsburg jaw," famously noted in the Habsburg dynasty of Spanish and Austrian royals, can be attributed to inbreeding. "The Habsburg dynasty was one of the most influential in Europe, but became renowned for inbreeding, which was its eventual downfall. Researchers recruited 10 maxillofacial surgeons to diagnose facial deformity in 66 portraits of 15 members of the Habsburg dynasty. The surgeons were able to diagnose 11 features of mandibular prognathism, also known as "Habsburg jaw," as well as seven of maxillary deficiency, most recognized by a prominent lower lip and overhanging nasal tip. "The Habsburg dynasty serves as a kind of human laboratory for researchers to do so, because the range of inbreeding is so high."

Source: Fox News December 03, 2019 01:52 UTC