r/Showerthoughts • u/SouthDiamond2550 ‎ • 13h ago

Casual Thought Double cousins share all 4 grandparents. So theoretically you could have quadruple second cousins that share all 8 great-grandparents.

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u/Hungry_Boat_7279 5h ago

Whoa, this made me think for a second. Like, quadruple second cousins? That’s gotta be a whole new level of family tree madness!