In a classic 1960 children's book, a baby bird toddles up to one critter after another asking, "Are you my mother?"
For some babies today, there's no simple answer — biologically or legally.
Advances in artificial reproductive technologies mean a baby could have three "mothers" — the genetic mother, the birth mother and the intended parent, who may be a woman or a man.
Statutes on surrogacy, adoption, divorce and inheritance vary state by state, court by court, decision by decision. For nontraditional couples, the patchwork of laws makes it even more complex. New York allows gay marriage but forbids surrogacy, for example, while Utah permits surrogacy but bans gay marriage.