One of lobsters claws may apply up to 100 pounds of pressure per square inch
They may not feel discomfort, but they can cause significant pain. Researchers noticed that after clamping down on a load cell, a pressure-measuring device, the lobster's larger claw, the crusher claw. This claw appears to have molars because it is used to break up anything hard, such as crabs, clams, and mussels. The other, known as the ripper claw or fast claw, tears softer prey such as fish or worms.