Answer five comprehension check questions about cnidarians and sponges in this interactive quiz.

The US Coral Reef Task Force was created to protect and sustain US coral reefs. This website provides general coral reef information as well as updates from the most recent task force meetings.

This site from the Missouri Botanical Garden is a comprehensive site covering various topics related to temperate oceans. Be sure to check out the ocean animals link on the left side to learn more about the invertebrates that live in the...