How do sharkes hunt?

sharkes use their diffrent senses.

"The goal of the study was to figure out how sharks use their different senses together, rather than isolating one sense at a time. Researchers examined three species of sharks — blacktip, bonnethead and nurse sharks — in an artificial flow channel inside the Mote Marine Laboratory in Sarasota, Fla.


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"The biggest motivation with this multisensory approach was to try to understand what they're really doing in a natural environment with sensory cues," said Jayne Gardiner, a postdoctoral fellow at Mote, who led the study."



when sharks hunt they use different senses like their nose an vertical lines down their back.


commentary:

learning this helped me understand more about how sharks hunt and how they use different senses this project has taught t me a lot about how to research.

http://news.discovery.com/animals/sharks/super-senses-how-sharks-hunt-down-prey-140402.htm

sensing prey

"A shark's jaws are specially adapted to thrust out at prey.

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Sharks are among the Earth's oldest creatures, dating back 300 million years to before the dinosaurs. They are also one of the world's most feared predators. The methods sharks use to find and hunt their prey vary as much as the number of shark species inhabiting our oceans.





Sensing Prey

Before a shark can hunt, he needs to locate his prey. Sharks' highly developed senses allow them to detect even the most minuscule hints that prey might be near. A shark's sense of smell is so acute that he can detect a single drop of blood in an Olympic-size swimming pool. He can tell which nostril picks up the odor first, allowing him to turn in the direction of his potential prey. "Lateral lines" that run down each side of the shark's body allow him to detect vibrations or pulses in the water, and small pores in the shark's snout, called ampullae of Lorenzini, let him detect electrical impulses emitted by other creatures.



Stalking

Once a shark has tracked down his prey, he stalks it before going in for the kill. Bottom-dwelling sharks are usually colored to blend in with the ocean floor. Active hunters sometimes circle a distance away from their prey to size up the situation before moving in for the kill. Most sharks hunt in the early morning or late evening, when less light penetrates the water, allowing them to blend into the shadows.



Catching Prey

Sharks have a variety of ways of catching prey. A great white will strike quickly, attempting to debilitate his prey with a single bite. He might even breach the water as he grabs his prey. The hammerhead has the smallest mouth of any shark species, and this shark is primarily a bottom feeder. He uses his wide head to pin stingrays to the ocean floor before feeding on them. All sharks have detachable jaws that can be thrust forward to catch the prey, although the amount of jaw mobility varies between species."


sharks first locate the prey and then almost like stalk it until they go in quickly and catch it.


commentary: this website helped me more than the other one because it had more information and more facts explaining the shark.


http://animals.pawnation.com/sharks-catch-prey-7470.html