What I know is that, cloning is a technique scientists use in the lab to make exact genetic copies of living things. Often they take DNA from a living creature and insert it into a carrier like bacteria or yeast to clone genes, that they use in many ways. In 1996, Scottish scientists cloned a sheep they named Dolly. She was the first animal cloned using an udder cell taken from an adult sheep. Today scientists are cloning cows, cats, deer, horses, and other different animals. Researchers use the cloning of animals in a number of different applications. For example, to have gene mutations that help scientists study diseases. Livestock like cows and pigs, are cloned to produce more milk or meat. But, we never cloned a human, because it's difficult to produce a viable clone. In each attempt, there are a lot of genetic mistakes that prevent the clone from surviving. At the same time, we also have ethical concerns about cloning a human being.