Goblin Shark Snouts Contain Highly Sensitive Electroreceptors in Total Darkness

This shark hunts using electricity in absolute darkness.

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All sharks possess electroreceptors, but the goblin shark's extended snout increases surface area for sensory detection.

The elongated, flattened snout of the goblin shark is densely packed with ampullae of Lorenzini, specialized electroreceptors capable of detecting the faint bioelectric fields produced by prey muscle contractions.

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In an environment where sunlight never penetrates, vision becomes secondary. Instead, goblin sharks can perceive electrical signals from buried or hidden animals, allowing them to strike prey they cannot see.

This adaptation transforms the deep sea into an invisible electrical landscape, where survival depends not on sight but on detecting microvolt-level signals in water colder than a household refrigerator.

Source

Florida Museum of Natural History

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