Extensive site that contains much information about the various animal phyla. Each phyla gives photos, common examples, scientific names and references. Collection of 1630 websites about bio-diversity.

Characteristics, range, and behavior of marine snakes as well as photos of the Banded Sea Krait can be found on the Starfish website.

Take this ten-question review quiz over the Phylum Echinodermata. Read more about each question after an incorrect answer is given.

The Denver Zoo features a comprehensive overview of sea stars focusing on their habitat, range, adaptations, diet, physical characteristics, and more.

Learn about the different types of echinoderms in the ocean.

Understand the behaviors, characteristics, and classification of echinoderms.

Resource provides a brief overview of echinoderms. Includes pictures and links for more information.