The snapping shrimp's (Alpheus heterochaelis) enlarged claw produces a sound loud enough to be heard above water or outside an aquarium. The release of tension by muscles in the claw creates a shock wave strong enough to stun small fish or invertebrates. The snapping shrimp then pulls its prey into its burrow. Snapping shrimp range in color from semi-translucent to dark green. They prefer to live in quiet, shallow water under oyster rubble or in sponges.