Fins: Most sharks have fins that help them move, maintain balance, and steer in different directions.
Teeth: Sharks, are equipped with multiple rows of sharp teeth, which continuously regenerate, enabling them to efficiently seize and devour prey.
Skin: Shark skin is covered in dermal denticles, called placoid scales. These tiny, tooth-like structures create a flexible yet durable protective layer, reducing drag while swimming.
Eyes: Shark's eyes are specialized for vision in various light conditions found in different water depths. Some shark species have nictitating membranes, transparent eyelid-like structures that provide extra protection for the eyes.
Nostrils: Sharks have highly sensitive nostrils, which helps them detect chemicals in the water, including potential food sources.
Ampullae of Lorenzini: These electroreceptors, also known as jelly filled canals on their heads, can sense even weak electric fields generated by prey or potential mates.
Lateral Line: A series of pressure-sensing cells runs along their bodies, helping sharks detect movements and vibrations in the water.
Spiracles: Some shark species have spiracles, small openings above the eyes that allow water to flow over their gills even when they are resting or almost motionless.
Countershading: Many sharks exhibit Countershading, where the upper part of their bodies are darker while their bellies are lighter. This natural camouflage makes it difficult for predators or prey to spot them.
Swimming Bladders: Some sharks, such as the basking shark, possess a rudimentary swimming bladder that helps regulate their buoyancy.