Joint-legged animals without backbones are called arthropods and are placed in the phylum Arthropoda. Human legs are jointed at the knees
Arthropods are animals with segmented bodies and six or more jointed legs. They are the largest animal group
Introduction to the Arthropoda
By nearly any measure, the most successful animals on the planet are the arthropods. They have conquered land, sea and air, and make up over three-fourths of all currently known living and fossil organisms
Images of Arthropods
A great selection Arthropod Images
A millipede cam, inlcudes other millipede images.