num_pages: 32
description: Defines echinoderms, such as sand dollars and crown-of-thorns sea stars, and describes their physical characteristics, life cycles, habitats, sense, food, and means of self-defense.
language: English
title: Sea Stars, Sea Urchins, and Their Relatives: Echinoderms
titlecomplete: Sea Stars, Sea Urchins, and Their Relatives: Echinoderms (Invertebrates)
genres: Nonfiction
ratings_count: 6
publisher: Chelsea Clubhouse