The Titanic rests in an environment unlike almost any other shipwreck:
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Temperatures hover around 28°F (−2°C).
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Marine scavengers thrive in nutrient-poor extremes.
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Anything organic becomes food.
Flesh would have decomposed rapidly — much more quickly than people imagine — due to:
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Specialized worms
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Amphipods
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Bacteria
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Crustaceans
These organisms exist even at extreme depths and are efficient at consuming soft tissue.

That answer is even more surprising.
2. Deep-Sea Chemistry Dissolves Bones
According to Dr. Robert Ballard, the Titanic lies well below the Calcium Carbonate Compensation Depth (CCD) — a critical scientific threshold.
Below about 3,000 meters (9,800 feet):
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The ocean is undersaturated in calcium carbonate.
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Bones cannot survive because they are composed largely of this mineral.
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Once exposed, they begin to chemically dissolve.
“Below this depth, once marine life consumes the flesh and exposes the bones, the bones dissolve. The deep sea erases them.”
This means that even if complete skeletons initially settled on the seabed, they would not have lasted long.
Within decades, perhaps even years, they disappeared entirely.