Embryo adoption is a topic of considerable debate in the Church. Well over a million human embryos are currently being kept in cryogenic containers with little prospect of survival. The desire to rescue these vulnerable human beings is natural. However, the processes required to do so raise serious questions regarding the ethics of embryo adoptions. The violation of the unitive and procreative aspects of human intercourse and its ramifications on the moral status of heterologous embryo transfer are key to understanding (...) the reasoning behind some objections to human embryo adoption. (shrink)