The duck-billed platypus uses its snout to detect electricity. This enables it to find its food while it Swims with its eyes, ears, and nostrils tightly closed. The curious aquatic egg-laying mammal lives in the rivers of Australia. Lining its large leathery 'bill are thousands of pore-like openings, each containing sensory cells that, can detect minute electrical currents produced by the moving muscles of its prey, such as the flicking of a shrimp's tail, or the wriggling of a worm. Using its sensitive snout in this way, the platypus can scour the riverbed to satisfy its enormous appetite: it consumes almost its own weight in food each day. With its bill the platypus can sense
even weaker electrical fields associated with the movement of water over objects in the river, such as logs and rocks, helping it to find its way.
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