“They took an alga that is normally single-celled and let it live in the lab for over a thousand generations. Your Inner Fish: a Journey into the 3.5-Billion-Year History of the Human Body The same is true when we infer relationship among species.” It would also have a practical application because I could use this tree to understand my predilection to get certain diseases and other facts of my biology. This tree would be a very powerful window into my past and my family history. I'd see that some of the denizens of the cemeteries are distantly related to me, others are related more closely. I can find this out by looking at their DNA with many of the forensic techniques in use in crime labs today. What I would discover is that all people buried in these cemeteries- no mater whether that cemetery is in China, Botswana, or Italy- are related to me to different degrees. “No sane paleontologist would ever claim that he or she had discovered "The Ancestor." Think about it this way: What is the chance that while walking through any random cemetery on our planet I would discover an actual ancestor of mine? Diminishingly small.
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