Class Diplopoda is a group of arthropods commonly known as millipedes. However, there are several synonyms that are used interchangeably to refer to these invertebrates. One synonym is the term Diplopods, which is derived from the Greek words "diplous" and "pous" meaning double foot. Another common synonym is Myriapoda, which translates to "many feet". Additionally, the term Iulomorpha is also a synonym for millipedes but is not as widely used. Regardless of what they are called, millipedes are herbivores that can be found in diverse habitats ranging from tropical rainforests to deserts. They play an important ecological role as decomposers and can even be kept as pets.