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Earthworms may offer clues into magnetic navigation

Scientists have known for decades that many animals use the Earth's magnetic field for navigation. It's less clear how they do it. A new study suggests earthworms may be a good way to figure it out. (This story first aired on All Things Considered on October 15, 2025.)

Copyright 2025 NPR

Nathan Rott is a correspondent on NPR's National Desk, where he focuses on environment issues and the American West.