Why are scientists testing things on animal-human embryos?
1. Research on fully human embryos are morally problematic for many people, and there are many barriers (both legal and moral) to this kind of research. Even though research on human embryos would be the most direct and efficient way to do human science, this is the least preferred way most of the time for the legal, moral, and political reasons. 2. Animal-human embryos might provide a way to grow human tissue that could be used in transplants for people who are sick or dying. 3. Ultimately, the goal of any scientific research is to improve the human condition, both the physical and mental. There’s a trade-off between the costs of doing human/animal research and the benefits of that research for other people. That balance may be controversial, and such controversies have followed science with each progress. Consider that the idea of the earth being the center of the universe was “known” to be true — and those who suggested it was not true were persecuted. How about the idea that the e
