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Echoes and Mirrors» Blog Archive » hey jerks!

hey jerks!

Dinosaur Fossils and Evolution:

The theory of evolution made a very strong prediction, one that could potential falsify evolutionary theory completely. Evolution depends upon common descent – that all life is related through a series of branching events. Evolution therefore predicts that as we discover more fossils (more pieces to the puzzle) the picture that will emerge will be one of branching descent. Evolution requires this.

Branching descent has two main components – morphology and temporal sequence. The sequence of fossils should show morphological relationships in a branching pattern. One branch will have a set of morphological features that define the branch, and within that branch species will emerge with variations on those features. Occasionally a branch may give rise to a significant morphological change leading to a new branch.

In other words, evolution predicts that as we lay out fossil species morphologically they will fit into a branching pattern of relatedness. We will not see, however, random morphological features without a clear pattern. We will not see impossible hybrids, or entirely new complex structures arising without plausible antecedents, or the same specific derived characteristics in unrelated lines.

Evolution is pretty much the basis for most systems over time. The fact that some people refuse to acknowledge it as the basis for human life astounds me.

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CLAY
CLAY

Some people are stubborn.