The Question of Cloning A group of scientists in Massachusetts have successfully cloned the first human embryo. This has caused a controversy as to whether cloning humans should be allowed. There are many people who think that this research should stop, and many others who think that it should...

Scientists have been injecting cells into the spinal cords of monkeys who have Lou Gehrig's- like disease. The point of this new experiment is to find out if stem cells in human embryos and fetuses can regrow healthy neutrons. If successful, it may be a way to treat Lou Gehrig's in humans...