Cross-fostering
（重定向自Cross Fostering）
![The ranges of these galahs overlap with a related species, leading to natural cross fostering.](/Images/godic/202501/07/Galahs_flying_motion_blur1448.jpg")
Cross-fostering is a technique used in animal husbandry, animal science, genetic and nature versus nurture studies, and conservation, whereby offspring are removed from their biological parents at birth and raised by surrogates. This can also occasionally occur in nature.