These data are averages over two parental behavior trials. Data in A show the latencies (in seconds; mean ± SEM) to retrieve the first pup. In B, the number of pups retrieved (of a total of 3 pups) is presented. *XX females significantly different from all other groups. XX, n = 10; XY−, n = 12; XXSry, n = 11; XY−Sry, n = 11.