The force or pressure of a shark's bite can be measured using a device called a "gnathodynamometer," or simply a "shark-bite meter."The goal is to record the biting pressure in pounds per square inch; this is accomplished by getting the shark to bite down on the meter while it's embedded in some type of bait. For example, during one bite test the highest force applied by a single tooth was 60 kilograms (132 pounds). Since it was estimated that the 60 kilograms were applied over an area of 2 square millimeters, this means a loading of 30 kilograms per square millimeter. This equates to a force of 3 metric tons (6,000 pounds) per square centimeter! In practice, the tooth would shatter before actually reaching this pressure. There is no question sharks can do severe damage if they apply the full pressure of their bite, which is often not the case.
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