Another Genetic Study Affirms Cambrian Explosion Required New Genes

Don’t remember the “Cambrian Explosion,” that sudden eruption in distant Earth history during which hundreds of new species suddenly appeared on the scene?

Photo by Markus Spiske on Unsplash

Intelligent Design advocates have for years argued that the Cambrian Explosion required the creation of original genes, but Neo-Darwinians retorted that a variety of environmental factors could account for the sudden emergence.

Now comes a new genetic study — “The Genetic Factors of Bilaterian Evolution” — that concludes at least 157 new genes were required to produce new animals with bilateral symmetry. “Evolution News & Science Today” has the fascinating details.