It uses its pectoral-fin spines as anchors to prevent jackknifing as its body musculature produces snakelike movements.
步行以
为锚，在身体产生
形动作时防止弯折。
形
;一般It uses its pectoral-fin spines as anchors to prevent jackknifing as its body musculature produces snakelike movements.
步行以为锚，在身体产生形动作时防止弯折。
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