Data on inbreeding in several contemporary human populations are compared, showing the highest local rates of inbreeding to be in Brazil, Japan, India, and Israel.... read more ›
Mark Laita first met the Whittaker family, who are widely recognised as America's most famous inbred family, after being granted access to their peculiar world. The family have little contact with anyone in the outside world and when Laita first attempted to photograph the family, neighbours threatened him.... continue reading ›
In the whole population, 45 percent were inbred, while 78 percent had inbreeding less than 3.125 percent. The highly inbred matings in the whole population were 159 (3.15 percent) between half sibs and 22 (0.44 percent) between parent-offspring.... continue reading ›
Genetic Data Reveals Rates Of "Extreme Inbreeding" In The UK Population. Roughly one in every 3,650 or so people in the UK could have been born of extreme incest, a variety that involves parents that are first- or second-degree relatives, according to a new study published in the journal Nature.... view details ›
Inbreeding is more common in the following states: Washington, Oregon, Montana, South Dakota, New Mexico, Oklahoma, Arkansas, Louisiana, Indiana, Kentucky, Tennessee, Alabama, Georgia, South Carolina, North Carolina, Virginia, West Virginia, Maryland, Delaware, and Maine.... read more ›
Mark Laita first met the Whittaker family - who are widely regarded as America's most famous inbred family - after being granted access to their weird world. The family have little contact with anyone in the outside world and when Laita first attempted to photograph the family, neighbours threatened him.... see more ›
And inbreeding still happens today in many parts of the world. Now having said this, there is no sharp cutoff between inbreeding and not inbreeding. Since we are all humans and all share a common ancestor somewhere down the line, we all have some degree of inbreeding.... view details ›
- Reduced fertility both in litter size and sperm viability.
- Increased genetic disorders.
- Fluctuating facial asymmetry.
- Lower birth rate.
- Higher infant mortality and child mortality.
- Smaller adult size.
The Whitakers are rated as the most inbred family in the United States because every one of them is related; however, recent records have revealed that their parents were cousins and not brother and sister as was earlier made to be believed.... continue reading ›
This would suggest that the average modern day Japanese is descended from about 16% of the population of the 6th c Japan. This, contrary to expectations, is less inbreeding than for the other regions/countries. The value for Japan, using the known value of R for Japan, is 0.91%.... continue reading ›
Some localities in Puerto Rico and Sweden show inbreeding levels half-way between the extremes found in Brazil and Japan and in the United States.... continue reading ›
Crime maps showing which counties are most affected by different crimes have revealed West Yorkshire as the region with the greatest number of incest offences.... read more ›
In the states of New Jersey and Rhode Island, incest between adults is legal. However, neither state permits marriage. In New Jersey, each person involved in the relationship must be at least 18 years old. In Rhode Island, the age of consent is 16 years old.... see details ›
The team determined that 125 people, or 1 in roughly every 3,600, met their criteria for inbreeding, meaning the parents were likely either first-degree relatives (siblings, for example), or second-degree relatives (aunts or uncles, among other possibilities).... view details ›
Inbreeding can lead to higher frequencies of genetic defects. Inbreeding occurs when the alleles at a gene site are identical by descent. This can occur when a common ancestor appears on both the maternal and paternal side of the pedigree.... see details ›
Some members of the Whitaker family have mental and physical abnormalities. A few members only communicate through grunts and cannot speak. Some did not attend school. Laita first visited the family in 2004 for his first book, "Created Equal."... read more ›
A total of 29.24% were born of consanguineous marriages, F = 0.02313. Inbreeding was most common among the Hindus: 23.56% of their marriages were uncle-niece, F for the group was 0.02670.... view details ›
Consanguineous marriages are strongly favoured in the Saudi population. A population-based study of consanguineous marriages was conducted in the Riyadh area. The prevalence rate of consanguineous marriages was 51.3% with an average inbreeding coefficient of 0.02265, which is high compared with many other countries.... see more ›
Globally, over 10% of marriages are between first or second cousins. The Middle East has the highest rates of cousin marriage. Saudi Arabia has marriage rates to first or second cousins that may exceed 70 percent. Iraq is estimated to have a rate of 33 percent, and Afghanistan – 30–40 percent.... read more ›
This would suggest that the average modern day Japanese is descended from about 16% of the population of the 6th c Japan. This, contrary to expectations, is less inbreeding than for the other regions/countries. The value for Japan, using the known value of R for Japan, is 0.91%.... view details ›