How is the Wolf Eel's caudal fin structurally different from a true eel's tail?

Answer

Its tail is a rounded caudal fin merged with the dorsal and anal fins.

Despite superficial comparisons to true eels, the Wolf Eel exhibits significant anatomical differences in its posterior body structure. Unlike many true eels, which might have a tapering tail ending in a continuous fin structure, the Wolf Eel's body shape culminates in a rounded caudal fin. This fin is not isolated; rather, it is integrated and fused seamlessly with the posterior extensions of the dorsal and anal fins. This specific configuration is highly advantageous for its lifestyle, as it grants the fish excellent maneuverability. This design allows the Wolf Eel to navigate and wedge itself efficiently into tight crevices within complex rocky reef structures and maintain a stable position against strong coastal currents.

How is the Wolf Eel's caudal fin structurally different from a true eel's tail?

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