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The majority of species inhabit fresh water, but a few, belonging to the families Ariidae and Plotosidae, are marine. Freshwater catfishes are almost worldwide in distribution and live in a variety of habitats from slow or stagnant waters to fast mountain streams; marine catfishes are found in the shore waters of the tropics. Catfishes are generally bottom dwellers, more active by night than by day. Most are scavengers and feed on almost any kind of animal or vegetable matter.

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9y ago

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