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 ...

Prehistoric times had no shortage of pretty scary creatures, but you need to look no further than this huge arthopod to find ...

Such appendages include the antennae of insects and crustaceans, and the pincers and fangs of spiders and scorpions. "Today, there are more species of arthropod than any other group of animals on ...