Report
97-million-year-old magnetite fossils reveal ancient animal 'GPS' navigation system
University of Cambridge and Helmholtz-Zentrum Berlin researchers used 3D magnetic imaging on Cretaceous-era magnetofossils to reveal internal structures optimized for detecting Earth's magnetic field direction and intensity, suggesting biological navigation system from unknown marine organism.
TLDR
Pushes back timeline of magnetoreception evidence ~97 million years. Demonstrates sophisticated evolutionary adaptation for long-distance ocean navigation and provides oldest direct evidence of animals using magnetic field detection for precise travel and orientation.
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