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

A new study published in the American Journal of Human Biology has uncovered a significant relationship between family ...

A group of relatives dubbed "America's most inbred family" first started with two identical twins whose children went on to create several generations who would grunt and bark as their only form ...

Every member of the family that lived to adult age married and had many children. There were seven cases of marriages between first cousins.

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 … ...

A tiny but deadly species of cat appears to be inbreeding at an "alarming" rate, putting the threatened feline at a heightened risk of a rare, deadly disease, scientists have discovered.

Why AI could stifle our culture with “genetic deformities” that don’t faithfully represent humanity's thoughts, feelings and insights.

While incest was generally considered taboo in the community that inhabited Paquimé, it may have been overlooked—and leveraged—by the power-grasping upper classes.

Inbreeding emerges as critical problem for endangered orcas, researchers say Female killer whales take about 20 years to reach peak fertility, and the females may not be living long enough to ...

A family, dubbed as the most inbred in America, have been afflicted with a series of devastating genetic defects, triggered by a pair of identical twin brothers. The Whittakers, residing in the small ...

Inbreeding among an endangered population of orcas off the coasts of British Columbia, Washington and Oregon is a cause for concern.

The small size and isolation of the endangered population of Southern Resident killer whales in the Pacific Northwest have led to high levels of inbreeding. This inbreeding has contributed to ...