Animals that have a hard body covering and jointed legs are called arthropods. There are more than a million different types of arthropods, making them the most successful group of animals on earth. Arthropods - including insects, crustaceans and spiders.

Originally released by Phoenix Learning Group, 2000. Streaming video file encoded with permission for digital streaming by Infobase on April 07, 2015.

Variety of Arthropods (3:23); --Chelicerata (2:10); -- Crustaceans and Myriapoda (4:42); -- Insects (4:03);.