Sea Sponges Facts

There are thousands of species of sponges, which are marine animals. Learn some basic sponge facts along with examples.

Sponge Kids Answers

Parazoa of the Animal Kingdom

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Ancient glass sponge reef discovered off B.C. coast

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The Inner Lives of Sponges

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Facts About Sponges (Porifera)

Phylum Porifera: Sea Sponge Characteristics, Reproducution and More! - HubPages

18 Sea Sponge Facts About These Underwater Wonders