| Through DNA testing, we can learn not only that we | | | | illustrate the natural selection theory as those animals |
| share DNA with our immediate families, but also, | | | | who exhibit the best qualities shall be more successful |
| remarkably, that we connect to the first living | | | | in reproduction and, ultimately, in evolution and |
| organisms on earth. Genetic research, including DNA | | | | existence. Those with less favorable qualities are |
| testing, reveals how different species originated from | | | | more likely to fail and, perhaps, become extinct. |
| a common ancestor. Many scientists believe that, | | | | Our species continues to evolve. You can look at |
| billions of years ago, the first single-celled organisms | | | | your relatives and see that you share many physical |
| were derived from organic molecules in the | | | | attributes with them. Some dominant physical |
| atmosphere. From these first single-celled organisms, | | | | attributes may even be passed on through many |
| everything from algae to insects, and reptiles to | | | | generations. While a DNA test may not be necessary |
| mammals evolved. | | | | to confirm that you are related to those you know |
| Charles Darwin is famous for his evolutionary theories. | | | | as your family, it can be studied over many years |
| He theorized that natural selection determines which | | | | and connect you to family you did not know you |
| individual animals and/or species will survive and adapt | | | | had. Also, via DNA testing, the evolution of |
| and which will not. As genetic anomalies can now be | | | | inheritance patterns can be determined, which we are |
| detected easily through DNA testing, this helps to | | | | likely to hear more about in the near future. |