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Cambrian explosion

Researchers: Ediacaran explosion? There were complex ecosystems before the Cambrian

One can claim that the Cambrian explosion was nothing new only at the risk of shortening the time to establish complex ecologies, which should begin to create doubt about random processes in an active mind. Read More ›

Stasis: Mating behavior unchanged from Cambrian era

Researcher: And it provides strong evidence to suggest that a Limulus, or horseshoe crab-like behavior, already existed in the Cambrian completely by convergence. So, it really helps us to get a sense of how these animals were actually living millions of years ago." Read More ›

At Evolution News: Silence around Cambrian Brains

This was bound to come up eventually: First, notice the quote marks around “Cambrian explosion,” a subtle hint that the term is controversial. It’s not. They state clearly that it is “marked by the appearance of most major animal phyla.” Panarthropoda is a taxon that combines arthropods with tardigrades and onycophorans. The sentence means that yes, lots of different arthropods appear throughout the fossil record, revealing “extreme morphological disparities,” i.e. outward differences. Yet these Chinese specimens show that the brains are conservative — not that they vote Republican, but that CNS structures throughout the panarthropod collection are similar, not showing extensive evolution. They’re not just conservative; they are “remarkably conservative.” In terms of general body plan, it’s a picture of Read More ›

Those awful comb jellies betray the Darwinians again: They were even more complex than feared, starting at maybe 635 million years ago

They’re said to have appeared between 634 and 604 million years ago (Peterson and Butterfield, 2005) and figure in the Cambrian Explosion. Darwinians have been trying to Cancel the Cambrian Explosion since practically forever but it keeps coming back into the fact base. Read More ›

Key groups of Cambrian creatures tolerated stressful shallow water environment, researchers say

So these animals not only got started in a short period of time but were sophisticated enough to tolerate a stressful environment? The Cambrian gets more remarkable every time we dig into it. Read More ›

Can the Cambrian Explosion be explained away by the earlier Ediacaran Explosion?

David Klinghoffer: Lukas Ruegger is the personable new intelligent design “explainer” whose videos take an approach similar to Khan Academy’s. The latter’s offering on evolution is replete with junk science, as Casey Luskin has detailed. Ruegger’s treatment of the subject is much better, and I appreciate his clarity and brevity. Read More ›

Did giant mountain ranges provide nutrients in early Earth’s history?

According to the new thesis, the erosion of mountains provided nutrients that were hitherto unavailable, that helped life forms get started. Sounds like a rollout, actually. Read More ›

Did glaciers cause a billion-year gap in information about the development of life?

At Vice: This giant lapse in Earth’s memory exceeds one billion years in some places, resulting in 550 million-year-old rocks sitting atop ancient layers that date back 1.7 billion years, with no trace of the many lost epochs in between… Read More ›

Bryozoa add to Cambrian Explosion’s impact: 35 million years earlier than thought

So they are complex and that much closer to the dawn of life. At ENST: In Nature News and Views, Andrej Ernst and Mark A. Wilson write, “Bryozoan fossils found at last in deposits from the Cambrian period.” They had been “conspicuously absent” till now. Read More ›