Orthoporus ornatus, photographed at North Carolina State Museum of Natural Sciences
Desert Millipedes Photograph by Rosamond Purcell
They've got legs—lots of them. Millipedes have a chain of trunk segments with nearly identical pairs of walking legs. Arthropods, the hard-shelled group including some 80 percent of all living animals, from insects to crabs, have been well endowed with limbs for hundreds of millions of years.
