Stephen Jay Gould Essay Evolution As Fact And Theory

Stephen Jay Gould Essay Evolution As Fact And Theory-54
No one saw the evolution of one-toed horses from three-toed horses, but that does not mean that we cannot be confident that horses evolved.

No one saw the evolution of one-toed horses from three-toed horses, but that does not mean that we cannot be confident that horses evolved.

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Teachers often face difficult questions about evolution, many from parents and others who object to evolution being taught.

Science has good answers to these questions, answers that draw on the evidence supporting evolution and on the nature of science.

Scientists have inferred that descent with modification offers the best scientific explanation for these observations.

The theory of evolution explains how life on earth has changed.

However, scientists from many fields have examined these ideas and have found them to be scientifically insupportable.

For example, evidence for a very young earth is incompatible with many different methods of establishing the age of rocks. courts have ruled that ideas of creation science are religious views and cannot be taught when evolution is taught.This chapter presents short answers to some of the most commonly asked questions.Evolution in the broadest sense explains that what we see today is different from what existed in the past.It explains that living things share common ancestors.Over time, evolutionary change gives rise to new species.Furthermore, because the basic proposals of creation science are not subject to test and verification, these ideas do not meet the criteria for science. This question reflects a narrow view of how science works.Things in science can be studied even if they cannot be directly observed or experimented on.Scorpionflies have four wings of about the same size, and true flies have a large front pair of wings but the back pair is replaced by small club-shaped structures.If , as comparative anatomy suggests, scientists predicted that a fossil fly with four wings might be found—and in 1976 this is exactly what was discovered.In scientific terms, "theory" does not mean "guess" or "hunch'' as it does in everyday usage.Scientific theories are explanations of natural phenomena built up logically from testable observations and hypotheses.

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