Scientists are growing monkey-human chimeras just like the recent headlines scream because they are looking for a suitable host to grow human organs. In this research, scientists from Stanford are working with researchers in China implanting embryonic stem cells (ESCs) into monkeys with the hope that in time, they will find a living incubator for our organs.
Currently, they are using cells that are harvested from preimplant embryos. Preimplant embryos are preborn humans (PBH) that can be up to 28 days old. The highest quantity of PBHs used for research is at the BioBank at Stanford University in California. According to the National Center for Biotechnology Information, these PBH's are from individuals or couples that have decided to donate rather than discard or destroy them. BioBank refers to these PBH's as "unusable biological materials."
Researchers from both California and Spain are most likely doing ESC research in China because the laws and ethical guidelines are less restrictive there than those adhered to by much of the international scientific community. As an example, in 2018, a Chinese researcher announced the birth of twin girls whose genes he edited to prevent HIV. The 2016 guidelines of the International Society for Stem Cell Research, "a transnational, cross-disciplinary science-based organization dedicated to stem cell research", prohibit research on human gene-editing. They also prohibit research using PBHs older than 14 days. An article in EMBO Molecular Medicine argues that extending the 14-day rule could "create opportunities to integrate embryo research with organoid research." The discussion to go beyond the current prohibitions is out there.
How many PBH's are available for research? Hundred's of thousands, each in different stages of development. A 7-day PBH has distinct tissues that will over the next weeks and months develop into a recognizable human being. According to the American Pregnancy Association, a 28-day PBH has a developing brain, spine, heart, intestinal system, eyes, ears, lungs, and more. A wealth of growing organs that need a safe place to mature until the human recipients are ready.
Many people do not consider embryos human though, just biological material with the potential of humanness. What a stupid argument. There is a 0% chance that a human embryo if given the chance will develop into anything other than a human being. Dying before birth does not negate human being, nor is being used for research.
I might as well say this too. Making fetal developmental markers such as a heartbeat or ability to live outside the womb as declarations of human being is an argument made of whole cloth.
Killing babies for profit, even PBHs, is no longer the nefarious scheme of the abortion providers, but soon, a life-saving opportunity to effectuate humanity's desire to live forever. Who would have thought that days and weeks old embryos, however unwillingly, could become organ donors ? Well that's exactly where we are headed.