* Teeth: Sharks have sharp, serrated teeth that they use to catch and kill prey. If a shark is hit by a human, its teeth can cause serious injuries.
* Fins: Sharks have powerful fins that they use to swim quickly and maneuver through the water. If a shark is hit by a human, its fins can cause blunt force trauma.
* Tail: Sharks have a strong, muscular tail that they use to propel themselves through the water and defend themselves from predators. If a shark is hit by a human, its tail can cause serious injuries.
* Skin: Sharks have tough, leathery skin that helps to protect them from injury. However, if a shark is hit by a human, its skin can be cut or bruised.
In addition to these physical defense mechanisms, sharks also have a number of behavioral adaptations that they use to protect themselves from predators, including humans. These behavioral adaptations include:
* Aggression: Sharks are often aggressive animals, and they may attack humans if they feel threatened.
* Flight: Sharks are also capable of swimming quickly and escaping from predators, including humans.
* Camouflage: Some sharks have camouflage patterns that help them to blend in with their surroundings and avoid detection.
If you are ever in the water with a shark, it is important to stay calm and avoid making any sudden movements. If a shark approaches you, do not try to swim away. Instead, try to make yourself look as big as possible and make noise to scare the shark away. If a shark does attack you, fight back as hard as you can and try to hit the shark in the eyes, nose, or gills.