IVF technology (in vitro fertilization) allows having children even for those couples who meet certain health problems in reproductive area. Sometimes, however, apart from IVF, one may need a surrogate mother for to gestate a conceived child. Search for a surrogate mother could be easier and cheaper if a female of some animal, e. g. apes or pigs, could gestate a human embryo. This may also help to solve the demographic problem by opening special farms in countries suffering from depopulation. What does the experimental biology says in regard to this idea?