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A Swimming Snail
Sea butterflies (also called pteropods) are sea snails aptly named: they are...
This transparent cockatoo squid (Leachia sp.), also known as a glass squid, lives...
A fringe of short tentacles surrounds the flattened bell of this tiny, transparent...
These "elevator" rudists, an ancient bivalve, used one long heavy valve to anchor...
Where ocean currents were strong, ancient rudist “recliners” lay unattached on...
Rudist clams are mollusks that went extinct about 65 million years ago. They were...