Some think that our ability to classify plants and animals on a groups-within-groups hierarchical basis virtually forces scientists to treat evolution as a “fact.” However, we can classify kitchen utensils on a groups-within-groups basis, but that hardly forces anyone to believe that knives evolved into spoons, spoons into forks, or saucers into cups and plates.įigure 6. Using descent from a common ancestor to explain similarities is probably the most logical and appealing idea that evolutionists have. That idea seems to make sense, since that’s the way we explain such similarities as brothers and sisters looking more alike than cousins do. One of these is the evolutionary idea of descent from a common ancestor. Why should there be that kind of similarity? Why should a person’s arm have the same kind of bone pattern as the leg of a dog and the wing of a bat? There are two basic ideas. Biologists use the term “homology” for such similarities in basic structure. As it turns out, there are many other living things that have forelimbs with a similar pattern: the foreleg of a horse or dog, the wing of a bat, and the flipper of a penguin, for example, as shown in Figure 6. There’s one bone attached to the body, two bones in the forearm, a little group of wrist bones, and bones that extend out into the fingers. If God made people as people, why are we full of “animal parts”? Look at your arm for a moment and try to picture the bones inside.
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