06Aug 2026 by Post

Paper Promotes “Weirdest Theory Yet” for the Cambrian Explosion

animal phyla, animals, bilaterian animals, Cambrian Explosion, Cambrian Period, coprolites, digestive systems, ecosystems, Ediacaran fossils, Evolution, fecal matter, Feces Theory, genes, genetic information, Gizmodo, oxygen, oxygen theory, paleontology, poop, The Best of Evolutionary Theory 2026, Trends in Ecology and Evolution
First the Oxygen Theory, now the Feces Theory. But how much experience do we really have with feces creating new genetic information? Source
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09Jan 2026 by Post

New Paper Has Bad News for Popular “Oxygen Theory” of the Cambrian Explosion

Cambrian animals, Cambrian Explosion, clades, Darwin's Doubt, David Coppedge, Douglas Erwin, Evolution, evolutionary precursors, Gizmodo, Intelligent Design, James Valentine, oxygen, oxygen theory, oxygen trigger model, oxygenation, paleontologists, paleontology, partial pressure of oxygen, Proceedings of the National Academy of Sciences, The Cambrian Explosion (book)
The technical paper acknowledges that this level of oxygenation, if sustained, would indeed “challenge the view” that oxygen was a trigger for animal evolution. Source
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