The First Forests: When Roots Remade the Land

A forest seems like scenery until it does not exist. Before trees, riverbanks lacked deep root networks, soils were thinner, and tall canopies did not divide sunlight into layers. During the Devonian Period, plants assembled the first forests and began engineering continents in ways that reached from local streams to the global carbon cycle. Inside this episode: - Before A Forest - Gilboa And A Surprising Tree - Roots Become Geological Actors - Rivers With New Boundaries Sources include peer-reviewed Earth-science research, official scientific institutions, and the episode's linked source record. This episode is a researched narrative summary. Historical records may be incomplete, translated differently, or interpreted differently by scholars. We distinguish documented facts, estimates, disputed interpretations, and later stories where material. Corrections are logged and incorporated into future editions. Follow Earth Before Humans for more researched journeys through deep time.