A married couple with three children discovered they were cousins after taking a DNA test to learn more about their family tree. Celina Quinones, a realtor from Colorado, shared the news in a ...

An curved arrow pointing right. Figuring out how exactly you're related to the people in your extended family can be surprisingly tricky. Follow BI Video: On Twitter More from Lifestyle Figuring ...

How far does the kissing cousin branch extend? What about parents whose adult kids will never have kids? Or their only child died, and with that loss, their branch on the family tree ends.