In California, adoption is the preferred permanent plan for dependent children who cannot be reunited with their parents. ( 366.26, subd. (b)(1); In re Celine R. (2003) 31 Cal.4th 45, 49, 52-53; In re S.B. (2008) 164 Cal.App.4th 289, 297; In re Valerie A. (2007) 152 Cal.App.4th 987, 997; In re Dakota H. (2005) 132 Cal.App.4th 212, 228; In re Tabatha G. (1996) 45 Cal.App.4th 1159, 1164.) Once the juvenile court finds a dependent child is likely to be adopted, the burden shifts to the parent to show that termination of parental rights would be detrimental to the child under one of the statutory exceptions to the preference for adoption. (In re S.B., at p. 297.)