Which physical features does Clarias batrachus primarily use to propel itself forward during terrestrial movement?
Answer
Pectoral fin spines
The walking catfish moves across land by propelling itself with its strong, stiff pectoral fin spines combined with muscular body contractions. This sinuous, wriggling motion allows the fish to traverse damp surfaces when searching for new aquatic environments during heavy rain or when current water sources dry up.
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