In trying to explain the existence of the complicated body structures we see in living things around us, a theory of evolution has been developed. While most scientists accept this theory, many people do not. They feel it goes against what is written in the Bible.
This theory is that all the planets and animals in the worl today have developed in a natural way from earlier forms that were simpler. These earlier forms developed from still simpler ancestors, and so on back through millions of years to the very biginning when life was in its simplest form, merely a tiny mass of jellylike protoplasm.
According to this theory, man, too, developed from some simpler form, just as the modern one-hoofed horse is the decendant of small five-toed ancestor.
In trying to prove that evolution did take place, scientist depend on three chief "signs". One of these is the study of fossil remains of animals and plants of past ages. Some of these fossils seem to trace the steps of evolution at work. Fossil remain of primitive men have been found that go back to a time 1,000,000 years ago. Fossils of certain crablike animals go back nearly 5,000,000,000 years. These fossils show that fish developed in the waters of the earth before amphibians, amphibians before reptiles, reptiles before birds, and so on. Scientist believe this proves life has progressed from one form to another.
Another "sign" of evolution comes from the study of embryology, the growth of a new living thing from an egg. In studying the development of the chick from the hen's egg, there is a time when this embryo is like a fish, later it's like an amphibian, then it passes through the reptile stage, and finally develops into its bird form. The unborn young of all animals go through the same kind of process, repeating their history of development.
The third "sign" is the bodies of living animals. For example, the bone and muscle structure in the paddles of a turtle, the wings of a bird, the flippers of a whale, the front legs of a horse, and the arms of a man are similar in structure. And man many organs in his body which seem of no use. They are thought to be relics handed down from his earlier ancestors. These are some of the "signs" that led to a theory of evolution.
This theory is that all the planets and animals in the worl today have developed in a natural way from earlier forms that were simpler. These earlier forms developed from still simpler ancestors, and so on back through millions of years to the very biginning when life was in its simplest form, merely a tiny mass of jellylike protoplasm.
According to this theory, man, too, developed from some simpler form, just as the modern one-hoofed horse is the decendant of small five-toed ancestor.
In trying to prove that evolution did take place, scientist depend on three chief "signs". One of these is the study of fossil remains of animals and plants of past ages. Some of these fossils seem to trace the steps of evolution at work. Fossil remain of primitive men have been found that go back to a time 1,000,000 years ago. Fossils of certain crablike animals go back nearly 5,000,000,000 years. These fossils show that fish developed in the waters of the earth before amphibians, amphibians before reptiles, reptiles before birds, and so on. Scientist believe this proves life has progressed from one form to another.
Another "sign" of evolution comes from the study of embryology, the growth of a new living thing from an egg. In studying the development of the chick from the hen's egg, there is a time when this embryo is like a fish, later it's like an amphibian, then it passes through the reptile stage, and finally develops into its bird form. The unborn young of all animals go through the same kind of process, repeating their history of development.
The third "sign" is the bodies of living animals. For example, the bone and muscle structure in the paddles of a turtle, the wings of a bird, the flippers of a whale, the front legs of a horse, and the arms of a man are similar in structure. And man many organs in his body which seem of no use. They are thought to be relics handed down from his earlier ancestors. These are some of the "signs" that led to a theory of evolution.
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