[Kirkwood]

The explosion occurred when nearly all life forms became morphologically symmetric. It was a huge advantage for long-distance motility, hunting for food, sexual reproduction, survival even with loss of body parts, etc. It was also a huge genetic advantage to encode both sides of a bilateral body with a single set of genes. I’m unsure why this is surprising or controversial.

[redleghunter]

>>The explosion occurred when nearly all life forms became morphologically symmetric.<<

Amazing how that happened and how we know. It is almost like someone wanted it to be so.