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Coral Growth Rings
Ultraviolet light illuminates the growth rings in a cross-section of a 44-year-old...
The Hawaii Undersea Research Laboratory’s Pisces V submersible is lowered for a...
These "elevator" rudists, an ancient bivalve, used one long heavy valve to anchor...
What is coral bleaching? These white corals in the Gulf of Mexico’s Flower Garden...
Rudist clams are mollusks that went extinct about 65 million years ago. They were...