UNIRAMIA/DIPLOPODA
Although they look similar to centipedes, millipedes have two pairs of legs per body segment as opposed to the centipedes' single pair. Unlike the carnivorous centipedes, millipedes are generally herbivores, feeding on both living and dead vegetation.

Many species of millipedes coil up when disturbed, similar to the behavior exhibited by sowbugs or pillbugs, which are isopods (another kind of crustacean).

Among the world's 7500 species of described millipedes, many are no more than a few centimeters long, but in tropical regions some are ten times as long.

Like centipedes, millipedes usually live in moist places. The top layer of duff in a forest is an ideal place to find them. In human surroundings, they are commonly found in basements and other dark, moist areas.