Description Did you know that there are more insects than any other group of animals? The diversity of insects is staggering. What do ants have in common with bees? What?s the difference between a butterfly and a moth? How are ladybugs and weevils related? Some insects have a set of wings, some have two sets but others might not have any. Some, but not all, insects have a hard outer shell (exoskeleton). Learn how insects are alike and how they are different in this latest addition to the Compare and Contrast Series.