Animal groups, beginning classification: Mammals, Birds, Fish, Amphibians, Reptiles, and Insects. Simple explanations and vivid footage provide an excellent lesson in classifying animals. Discover that animals can be classified into groups by characteristics they have in common. Learn about the traits that help distinguish each group of animals, and see how these traits help them survive. Bluebirds: One man's dedication has helped bring back bluebirds,...

Soil: Did you even realize that the ground you're walking on is alive? In fact, a tiny handful of soil could contain millions of living things: insects, microscopic bugs and bacteria, as well as rocks that have been crushed over time by the elements. Seeds: Can you believe that you might be able to hold in your hands what could be a huge forest of trees. A tiny little seed could potentially grow into the world's tallest tree. Flowers: From tiny...

With frequent stops at pop culture meccas, and unforgettable encounters with humans of singular interest, the NPR Road Trips series introduces listeners not only to far-off locations and unusual destinations, but to the people who inhabit them, and seek them out. Each story focuses on real locations, real people, and real history in the thought-provoking, imaginative and entertaining way listeners have come to expect from NPR.