Showing results for
Staghorn (seen here) and elkhorn corals are listed as Threatened under the U.S....
Where ocean currents were strong, ancient rudist “recliners” lay unattached on...
Like the modern nautilus, this relative of modern squid hunted from inside the safe...
Exploring a Reef
A scuba diver explores elkhorn corals (Acropora palmata) growing on a tropical...
Rudist clams are mollusks that went extinct about 65 million years ago. They were...