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Catfish are identifiable by four pairs of whiskers around their mouth, a cylindrical body tapering to the tail, and dark brown-blackish coloration. They possess three venomous spines: two on the gills and one in front of the dorsal fin. Caution is advised when handling catfish due to these venomous spines. The author recounts a personal experience of being stung 15 years prior, with the scar still visible. It's crucial to break off these spines with pliers before removing the hook, but don't discard them.
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