Bryozoan Colony Clinging to Stick

Fingers holding a stick covered with a football-shaped gelatinous blob

Bryozoans are colonial invertebrate animals that live in the water and build exoskeletons similar to those of corals. Freshwater bryozoans' exoskeletons are gelatinous or chitinous (like that of insects). Worldwide, bryozoans are found on every continent except Antarctica.

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http://mdc.mo.gov/node/19589