have arisen independently several times within the family, though the exact amount requires taxonomic revision of the genera.

Snapping mechanics

Several mechanisms on the chelae allow these shrimp to create forceful snaps, such as modification to the dactyl (movable finger)'s joint, adhesive plaques, a tooth-cavity system on the fingers' cutting edge, and the enlargement of the snapping claw itself. The adhesive plaques use Stefan adhesion to

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