This is a documentary of cctv 10 entering science, not translated from abroad, but original. The history is a little long. When I saw the "Cambrian". Many people's first reaction is to talk about dinosaurs. Then not, but the origin of other animals. There was only one episode of this documentary, but the uploader divided it into four copies in order to pass the review.
Introduction to the Cambrian War:
First broadcast on July 30, 2013
During the Cambrian period, life began a great change. Legs, eyes and defensive skin began to grow on biological bodies, and these left traces on fossils. In this issue, we will witness a survey that spans time and space, understand the relationship between the creatures 500 million years ago and us today, and reveal the evolution of life on the earth.
Part I Online viewing:
Full version address of all 4 sections:
Link: https://www.bilibili.com/video/BV1Dp411R7qS