What is a First Cousin Once Removed?

In real life, family is family and cousins are cousins. But, in genealogy (and especially in genetic genealogy), it is important to understand exactly how you are related to someone. Correct understanding of the difference between a first cousin, a first cousin once removed, and a second cousin can make the difference in your genealogy research and in your interpretation of your AncestryDNA. Join Crista Cowan for a quick look at how to understand it and keep it all straight.