Life on Earth has existed for three and a half billion years. No one knows exactly how it started, but we know that all life today has evolved from simple protocells through the process of evolution. In this film, we look into the origin of life to understand how evolution has shaped the development of animals and plants. We explore how evidence of evolution can be studied in fossils and DNA, and you will learn how natural selection ensures that the species best adapted to their environment are the ones that will survive and reproduce. The film highlights that evolution is an ongoing process with no end. It will continue as long as there is life on Earth.