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Researchers: Cambrian explosion ended surprisingly quickly


Cambrian seascape off South Australia/Katrina Kenny, (CC BY-NC-ND)

The explosion lasted only about 20 million years, their research shows, and the subsequent 520 million years featured more even rates of change:

At (or shortly before) the start of the Cambrian Period (541 million years ago), modern animals evolved. They rapidly diversified into all the major groups (phyla) of animals we see today, such as jellyfish and corals, segmented worms (such as earthworms), molluscs (such as snails), arthropods (such as crabs), and even vertebrates (backboned animals, which eventually included ourselves)…

If modern animals first evolved at the very beginning of the Cambrian, then their global adaptive radiation took a mere 20 million years. While this is still substantial, it represents only 0.5% of the 3.5-billion-year history of life on Earth: a surprisingly brief interval to fill the Earth with body plans as disparate as starfish, snails, shrimps and fish.Mike Lee, Greg Edgecombe, and John Paterson, “Life quickly finds a way: the surprisingly swift end to evolution’s big bang” at The Conversation

If it took only .5% of the history of life for all those types of life forms to evolve, we need a new term for that type of evolution. How about: creation?

Yes! It makes sense to call Lee, Edgecombe, and Paterson creationists. Look, it’s okay. We’ll share.

See also: Researchers: Ediacaran To Cambrian Transition Took “Less Than 410,000 Years” (Look! More creationists! It’s getting crowded in here… )


Explanations for the Cambrian explosion (scads of theories as to how it happened)

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Yeah, so Life went WIDE first, and THEN went Deep. This makes ABSOLUTELY NO SENSE if the diversity if driven by extant species SLOWLY adapting into closely related "cousins". But it makes PERFECT sense if the guys in the lab have a bunch of prototypes in work and want to see which ones actually flourish outside the lab. Kinda like Ford engineers insisting that mechanically the Edsel was a GREAT car, and the sales guys pointing out "NOBODY wants it." But Evolution is the Creation Myth of Atheism, and if they admit that Evolution is flawed, then the ENTIRE foundation for Atheism as a serious Philosophy/system of ideas crashes and burns. So it will be defending to the last trench. I mean, Marxist-Leninism REQUIRES Atheism for its philosophical existence, and how can the world exist without Marxists? vmahuna
.5% is to 20k (rounded) : 3.5B based on deep-time dependent assumptions as 29 Years is to 5,779 years of life on Earth (capped by the age of the universe :) reference the Moshe Emes 'RCCF' framework for understanding science in context. Pearlman
B-b-b-b, but this is inexplicable for Darwinism. Darwin told us so!
“to the question why we do not find rich fossiliferous deposits belonging to these assumed earliest periods prior to the Cambrian system, I can give no satisfactory answer.” So “the case at present must remain inexplicable; and may be truly urged as a valid argument against the views here entertained.” – Charles Darwin – Origin of Species – 1860 – pg 308
Hmmm,,, interesting quote,,, I wonder if Darwin himself, given what we now know about the suddenness of the Cambrian explosion, would reject his own theory and accept Intelligent Design??
video - Darwin's Doubt - recorded March 7, 2017 - In this webinar, Dr. Stephen Meyer will tell the story of the mystery surrounding this (Cambrian) explosion of animal life - a mystery that has intensified, not only because the expected ancestors of these animals have not been found, but because scientists have learned more about what it takes to construct an animal. During the last half century, biologists have come to appreciate the central importance of biological information - stored in DNA and elsewhere in cells - to building animal forms. Meyer will show that the origin of this information, as well as other mysterious features of the Cambrian event, are best explained by intelligent design, rather than purely undirected evolutionary processes. http://foclonline.org/webinar-recording/darwin%E2%80%99s-doubt

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