Students find out about the brown bears that fish for salmon along the Brooks River in Katmai National Park, Alaska, and are introduced to the Guiding Question. The class watches a video clip, views photographs, and observes the physical and behavioral differences between bears at different life stages. After learning definitions of traits, students work in pairs to categorize brown bears’ specific traits as being either inherited or acquired.
Why are there differences between the ways individual brown bears look and act?