They bite. Most shark attacks occur when the person is threatening the shark.
sharks protect themselves by thrashing around and biting their assumed attackers which by this point they have became the prey
A bull shark protects itself by biting.
their teeth.
the saw on the nose
it swimm fast
By Using Its Teeth!! Easyyy as
buy there tail.
it bittes the enemy
it putz on a sweater.lol ;)
swip there tails againght shark and other predors
it uses its tail
FLAPPY BIRD: http://www.youtube.com/watch?v=PqH8YpjlycA
a dolphin protects itself by when a predator is there, for example a hammerhead shark they would use there teamwork to kill their predator.