Audience: Students; Grades: 9-12; Subject: Science. (2013) Explore the history of life from its humble beginnings as single-celled organisms, to its great blossoming and proliferation, which took place over the course of eons. With the help of state of the art computer graphics, the world's foremost paleontologists and biologists help unravel the greatest mysteries of life. Plants, Earth's Quiet Rulers Plants, the oldest form of life on earth hold many mysteries. While plants are often thought of as passive, we will see how many species have adopted aggressive strategies that have allowed for their survival. It is these "quiet rulers" of earth that are not only the foundation of the global ecology, but also the spring from which all life flows.