stem from the treehopper’s specially modified pronotum—a section of the thorax that in other insects resembles a small, shield-like plate. But treehoppers are the creative kids in their class ...

All insects belong to the phylum Arthropoda. But unlike other arthropods—like lobsters, spiders, or millipedes—insects have three pairs of jointed legs, segmented bodies, an exoskeleton ...

It's a common complaint at this time. But with its harsh cough that sounds like a seal barking, croup can be scary for parents when their kids catch it. "The first time my daughter had croup when ...