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A B S T R A C T Digging is a distinct form of locomotion that poses different mechanical problems than other locomotor modes that are commonly used by crustaceans, e.g., walking, swimming. I examined the mechanisms of digging by shovel nosed lobsters (Ibacus peronii), which spend most of the day underneath sand. Ibacus peronii were videotaped while digging. Ibacus peronii use a "wedge" strategy to submerge into sand. An individual penetrates the sand with the walking legs, then extends thedoi:10.1651/c-2628.1 fatcat:pkkzwmtbd5hj3lgp5axznwflla