what is the difference between 2nd cousin and 1st cousin once removed
In: Biology
Whether they’re part of the same “generation”
Suppose I have a cousin A. I have a child B, and A has a child C.
B and C are second cousins. B and A are first cousins once removed. C and I are first cousins once removed.
The number of “removes” is how many unequal generations apart you are. My first cousin’s child is my first cousin once removed, my first cousin’s grandchild is my first cousin twice removed, etc.
The number of “cousins” (first cousins, second cousins, etc) is how many equal generations apart you are. So the children of first cousins are second cousins to each other. The children of second cousins are third cousins to each other, though relationships past second cousins are rarely relevant to real life.
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