Remembering the difference between a “second cousin” and a “cousin once removed” is one of those facts that I have filed away in my brain as non-essential. I think I know the difference, but then I ...

Q: Can you explain to me what the difference is between my first cousin, second cousin, and my cousin, once removed? -- R.S., Eldridge A: Your first cousins are the people in your family who have two ...

Albert Einstein did it. So did Charles Darwin. All sorts of British royalty, including Queen Elizabeth. They married a cousin. Einstein and Darwin married first cousins. Prince Phillip was Queen ...

Marriage between cousins is widely viewed as taboo or a punchline in the United States. Intermarriage, or consanguineous marriage, literally meaning “of the same blood,” is illegal in 31 states.