Monday, February 24, 2020

Pattern of Life Defies Evolutionary Expectations

According to this report a study has concluded that life has a strange pattern. A new type of organism will appear and last a long time with very little diversity, and then when it reaches a version of its modern form, have a "flowering" where it bursts forth into a wide variety of forms. It seems this pattern makes a mess of molecular clocks.

To quote the article:
Budd and Mann show that the ancestral forms of modern groups are typically rather few in number, and once they give rise to the modern group, they can be expected to quickly go extinct. The modern group, conversely, tends to diversify very quickly and thus swamp out the ancestral forms. Thus, rather surprisingly, living organisms capture a great percentage of all the diversity there has ever been.
The only exceptions to these patterns are caused by the "mass extinctions," of which there have been at least five throughout history, which can massively delay the origin of the modern group, and thus extend the longevity and the diversity of the ancestral forms, called "stem groups." A good example of this is the enormous diversity of the dinosaurs, which properly considered are stem-group birds. The meteorite impact at the end of the Cretaceous some 66 million years ago killed off nearly all of them, apart from a tiny group that survived and flourished to give rise to the more than 10 000 species of living birds.
Noting how early bird-like forms appear in the fossil record, I had speculated in Early Genesis, the Revealed Cosmology that Dinosaurs were "meant" to be birds all along. At any rate, this is yet another example of a pattern of life which defies naturalistic expectations but fits well with the idea that creation was working toward an intended end-goal. With help.
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