Sharks hunt their prey using their strong sense of smell and by detecting electromagnetic fields generated by other animals. The great white shark's strongest sense is its ability to smell, and these sharks are able to detect a single drop of blood in ocean water. Sharks can detect electromagnetic fields through a series of pores on their snouts which feel for electric currents. This also aids sharks in navigating through oceans by following an electrical map created by the magnetic fields of Earth's crust.
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