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Yes it does have a buoyancy system.

The coelacanth (Latimeria spp.) is completely oil-filled (it has no air sinuses at all) and the swim bladder is filled with a fatty lipid. The oil is slightly positively buoyant and this counteracts the weight of the fish. These two factors enable the fish to rise and descend through a considerable depth range without suffering any adverse effects.

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15y ago

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