Inbreeding is where cousins and other close relatives have children together. Most cultures have strong taboos against it, primarily because of the increased risk of birth defects. Here’s why ...

The Whittaker family is famous for being "America's most inbred family," but how did they get that way? Their family tree ...

Two hundred years of inbreeding among European royals IS to blame for a facial deformity known as the 'Habsburg jaw', scientists claim. The Habsburg family held the throne of the Holy Roman Empire ...

A new study published this month in Heredity looks at inbreeding in the Habsburg royal family, known for cousins (and uncles/nieces) who did far more than kiss.

The Whittaker family, who live in the village of Odd, West Virginia, have become one of the most well-known families in America due to their complicated history with inbreeding ...

Despite known health risks of inbreeding, marriages between first cousins are still permitted in 19 states and DC [shown]. The Whittaker family, shown here, is the most famous inbred family in the US.

Overall, though, the family Targaryen knows to keep it in the family – even more so than real-world royal families. As the geneticist Razib Khan points out , “Daenerys Targaryen’s inbreeding ...

One study has suggested that a distinct facial deformity seen in the Habsburg dynasty was caused by inbreeding, which was rife in the powerful family that ruled Spain and Austria ...

A Dutch court on Friday ordered a man who’s fathered at least 550 children around the world to stop donating his sperm. The man, identified as Jonathan Meijer, is no longer allowed to donate … ...