| | The group’s typical aspect is its [[diplosomite]]s. Their bodies have about 200 pairs of legs. Each [[diplosomite]] has two legs, with the exception of the legless first section and the next three sections, each with a single pair of legs. Additionally, every [[diplosomite]], with the exception of the first four, has two pairs of [[internal organs]] (i.e., two pairs of [[ganglia]] and two pairs of [[heart]] [[arteries]]). The [[head]] has [[antennae]], [[eyes]] (called ''ocelli''), and one maxilla. The length varies from 0.2 to 28 cm. The amount of segments ranges from 11 to over 100 in certain species. Except for one order, every order of millipedes are covered with calcareous dorsal plates. Instead of biting, most defend themselves by tucking their heads into a tight coil with their outer skeleton shown, while others discharge a poisonous fluid from lateral glands.<ref name="Britannica">http://www.britannica.com/animal/millipede</ref> | | The group’s typical aspect is its [[diplosomite]]s. Their bodies have about 200 pairs of legs. Each [[diplosomite]] has two legs, with the exception of the legless first section and the next three sections, each with a single pair of legs. Additionally, every [[diplosomite]], with the exception of the first four, has two pairs of [[internal organs]] (i.e., two pairs of [[ganglia]] and two pairs of [[heart]] [[arteries]]). The [[head]] has [[antennae]], [[eyes]] (called ''ocelli''), and one maxilla. The length varies from 0.2 to 28 cm. The amount of segments ranges from 11 to over 100 in certain species. Except for one order, every order of millipedes are covered with calcareous dorsal plates. Instead of biting, most defend themselves by tucking their heads into a tight coil with their outer skeleton shown, while others discharge a poisonous fluid from lateral glands.<ref name="Britannica">http://www.britannica.com/animal/millipede</ref> |