Our happy hour fact to amaze your drinking buddies with.

The discoverer of evolution made the evolutionarily unsound decision to marry his cousin.

During his lifetime, Darwin wondered if marrying his first cousin, Emma Wedgwood, might have contributed to the poor health of their 10 children. Three of Darwin's children died before the age of 10; the rest were sickly and struggled to have their own children.

In a new study, researchers at Ohio State used a specialized program to analyze genealogical data from the Darwin and Wedgwood families. They concluded that Darwin's children suffered from a moderate degree of inbreeding, and this fact was probably a factor in their bad health.

Kind of puts a new spin on the old Darwin Awards.