Explore the fascinating evolution of grasslands in this comprehensive lecture by Dr. Caroline Strömberg from the University of Washington, Seattle. Delve into the research using microscopic plant fossils to uncover the mysteries behind one of the largest ecosystem changes in Earth's history. Learn about the importance of grass-dominated habitats, which cover over 40% of the planet's land surface and provide homes for millions of animals, including humans. Discover the timeline of grassland expansion across continents over the past 30 million years, the grass family tree, and the ecological significance of this widespread ecosystem. Gain insights into the concept of openness in grasslands and its implications. Engage with the latest findings on this crucial ecological transformation and its impact on our planet's biodiversity and human civilization.