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Staghorn (seen here) and elkhorn corals are listed as Threatened under the U.S....
Purple Sea Urchin
This purple urchin Paleopneustes cristatus is seldom seen by itself, and...
Diving in Guam
Dr. Valerie Paul is studying chemical defenses that may protect coral reefs from...
Dr. Stephen Cairns
Dr. Stephen Cairns is a research zoologist and chair of the Department of...
Exploring a Reef
A scuba diver explores elkhorn corals (Acropora palmata) growing on a tropical...