What is the Cambrian explosion?
About 500 million years ago, an incredible number of new animals and plants appear suddenly on the scene. This biological explosion is called the Cambrian Explosion. About 80 new phyla (of animals/ creatures) appear suddenly on the scene. 34-35 of today’s 35 currently living phyla appear suddenly at the Cambrian explosion. Each phylum has a completely different body plan / body organization. Many (may be all) phyla have novel organs, organ systems and novel proteins.
