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Disease Takes Hold
The white splotches are lesions of infected coral. ...
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Healthy Coral Polyps
Healthy coral is colorful. The entire coral is actually a colony of many little...
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Waving Sea Fans
Sea fans—softer-bodied coral relatives—colonizing a dead stony coral framework. ...
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Coral Larvae Settling
The small larvae of elkhorn coral (Acropora palmata) settle and grow on the...
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Dead Man’s Fingers
Dead man’s fingers (Alcyonium digitatum) are soft corals named for their...
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Fan Sponge
Dr. Martha Nizinski holds a specimen of a fan sponge (Phakellia sp.) collected at a...
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Coral Goby Cleans Coral
One of the first signs of a sick coral reef is seaweed creeping across...
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Solitary Deep-water Corals
These corals from the Smithsonian collections are Stephanocyathus (A.)...
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Fragile Branching Corals in Acidic Water
Branching corals, because of their more fragile structure, struggle to survive in...
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Monoculture of Boulder Corals
Close to the volcanic CO2 seeps, the vast diversity of corals that exists in...
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Sparkling Sponge Spicules
These sparkling sponge spicules are microscopic needle-like structures that many...
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