Let’s take a look at the three “strong and persistent evolutionary forces” that they say caused the Cambrian explosion.
Are "evolutionary novelties" in the lizard family derivable from a simpler chordate in the Cambrian?
Dr. Fleury of the French National Centre for Scientific Research has responded to us with a post of his own.
In dispelling the enigma of the Cambrian explosion, this research does not seem to hold out much promise.
Take a sheet of rubber and pull the sides till it buckles in the middle. Presto! A vertebrate!