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Everybody’s A Cousin 13

Most of us don’t feel a real familial connection beyond the first few branches of our family trees. A.J. Jacobs, however, has been on a three-year quest to grow the branches of his tree as far and wide as possible. He talks about traveling the world to connect the dots of his far-flung tribe, which he writes about in “It’s All Relative: Adventures Up and Down the World’s Family Tree” (Simon & Schuster).

This episode originally aired on December 4, 2017.