The Cambrian

In this video, That Bio Doc introduces you to life in the Cambrian Period (541 - 488.3 mya). This is the second video in a series of videos about the evolutionary history of life on Earth. During the Cambrian Period, we see the first appearance of many modern animal phyla in the fossil record. This phenomenon, known as the Cambrian Explosion, is one of the most interesting events in the fossil record. In this video, TBD introduces you to many of these animal phyla and describes the unique characteristics that define each phylum.