Patrice looks at, tundra, rainforest, grassland, taiga, temperate deciduous forest, and desert biomes. She then joins Dave to learn how the red-tailed hawk is adapted to a variety of habitats. In the third segment, we take an up-close look at the desert. Finally, Laura and Marshall take a hike with David Publicover of the Appalachian Mountain Club and look at the diversity of plant life along the trail.