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Loggerhead Turtles Use Magnetite for Long-Distance Navigation

11/24/2025

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Summary

Story summary

University of North Carolina at Chapel Hill researchers show hatchling loggerhead turtles navigate thousands of miles using a tactile magnetic sense based on magnetite crystals.
The turtles also rely on a light-dependent magnetic sense as a compass.
Exposure to a strong magnetic pulse diminished their ability to 'dance' in response to learned magnetic fields.
This finding supports conservation efforts for these marine reptiles.

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Story summary

University of North Carolina at Chapel Hill researchers show hatchling loggerhead turtles navigate thousands of miles using a tactile magnetic sense based on magnetite crystals.
The turtles also rely on a light-dependent magnetic sense as a compass.
Exposure to a strong magnetic pulse diminished their ability to 'dance' in response to learned magnetic fields.
This finding supports conservation efforts for these marine reptiles.