Cookie Cutter Sharks Disabled Nuclear Subs
Although Jaws made us fear Great White sharks, cookiecutter sharks are the true terror of the deep. These small creatures have a true horror movie element to them, which is mainly their lips, despite only being 20 inches long. Their ability to almost perfectly bite circles out of their prey is how they got their name. and still more.
It appears that sharks enjoy biting practically anything, including nuclear submarines. When nuclear submarines first entered the ocean, their small size and distinctive mouths made any exposed non-metal parts the ideal prey for sharks. They bit cables, hoses, and everything else they could get their teeth on.
Subs were forced to return to the dock for repairs after being rendered blind by their attacks on rubber sonar domes. The little sharks' reign of terror was put an end, at least insofar as nuclear weapons were concerned, when the subs were later constructed with some stronger materials.