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Hammerhead sharks, like mostly all sharks are ectothermic or "cold-blooded". This means they cannot regulate their own body temperature and the surroundings can make it fluctuate.
Sensory Organs
Sensory Organs
Hammerhead sharks use a group of organs called ampullae of lorenzini. This helps them identify the electrical fields of nearby prey. These organs are so sensitive that they can sense a human heartbeat several miles away from them.
Respiratory System
Respiratory System
Sharks do not have lungs. Instead they get oxygen from the ocean water that surrounds them. Through gill slits water passes, there are then small capillaries that allow oxygen to enter into the sharks bloodstream. The oxygenated blood is then pumped throughout the body, into the heart, and to the gills where carbon dioxide is then released.
Digestive System
Digestive System
Sharks have U-shaped stomachs that dissolve most of their prey with very strong acids and enzymes. The stomachs of sharks can expand quite a bit, ingesting their prey usually whole or in large sections.
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