Originally Posted by NaturalMindedMomma
Is hispanic a race? I know that was probably a dumb question!
No. Hispanic is not a race, it's an ethnicity.
NaturalMindedMomma (btw, congrats on the new baby):http://en.wikipedia.org/wiki/Puerto_Rican_people
(wiki -perhaps not the most accurate, but as a general reference it's OK)
**Puerto Ricans, who also commonly refer to themselves as "boricuas," are largely the descendants of Europeans, Taíno Indians, Africans or a blend of these groups which has produced a very diversified population.
Therefore, even though both of your children are 1/2 Puerto Rican, their racial makeup/racial ancestry may actually be different from each other.
Also, whatever genes show up in one's physical appearance may not align with one's racial makeup, especially when one's "mixed" (race or ethnicity).
This last part is also applicable to the OP's question.
Kids who share the same parents can have different skin tone/hair color/hair type/etc. from one another.
It happens in lots of families, not just with biracial couples.