The Cambrian explosion is the name given to the sudden origin of basically all of the major body plans in nature. It happened in a 3-5 million year period about 540 million years ago. It’s a problem for naturalists, because of the enormous amount of information needed to make these new (and different) body plans. The best explanation they had was that rising oxygen levels did it. Is that right?
Here’s an excellent post by Günter Bechly, writing for Evolution News.
Here’s the naturalistic scenario:
For more than seventy years it was the scientific consensus and undisputed textbook wisdom that the origin of multicellular life in the late Precambrian was triggered by increased oxygen levels (Fike et al. 2006, Sahoo et al. 2012, Lyons et al. 2014, Reinhard et al. 2016, Anonymous 2023, Harrison 2023, Ralls 2023, UCPH 2023). For example, McFadden et al. (2008) identified two pulses of oxidation in the Precambrian and found that “following this second oxidation event, between…
