It pays to be observant! Ogijewski, a forest scientist working in Russia in the early 1900s observed that oaks sometimes regenerated in small clusters where wild boars disturb the forest floor. From this simple observation he developed a reforestation method called cluster planting, the planting trees or seeds in tightly-spaced, small functional groups. The method caught on in Europe and is now practiced as a way to decrease planting costs and restore stand diversity. In this episode of...