The tiny world of insects makes up a big part of Theodore Roosevelt National Park. Most people do not like bugs; they never stop to think what an important role they have in an ecosystem. We are going to get out our magnifying glass and take a closer look at the world of bugs!
First, we need to learn that not all bugs are insects. An insect is a class, like a mammal or reptile. All insects have six legs, three body parts, and usually have wings. They are part of a much bigger group of critters called arthropods. This group includes all kinds of bugs like spiders and centipedes. Arthropods do not have skeletons, which is why they are in a different group from mammals, reptiles and birds.