How do hammerhead sharks protect themselves?

Do crayfish head gro back? Install clutch pedal assembly on 72 vw bettle? Is it grammatically correct to say you have three fishes in your aquarium? Do sharks need to move constantly? Do all koi fish have whiskers? How fast can goblin sharks swim? Are mysteriously dying fish and birds one sign on the end of times? Do swordfish get along with other fish? Are tiger sharks diurnal or nocturnal? Is Aqua fresh toothpaste vegetarian? Can goldfish eat crisps? How cree people hunt and fish? How much does it cost for a 55 gallon saltwater aquarium? What happens if you cut a star fish in half? Do they have leafy sea dragons at national aquarium in Baltimore? Are eels scaly? What kind of consumer is krill? What are pond plants called? How many people have been attacked by a seal? What is the relationship between hermint crab and snail shell?