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...

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...