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Advanced magnetic imaging techniques have revealed that mysterious giant magnetic fossils from 56 million years ago possess sophisticated internal structures optimized for sensing Earth’s magnetic field. The discovery provides new insights into how ancient organisms may have navigated using biological compass systems unlike anything seen in modern magnetotactic bacteria.

Breakthrough Imaging Reveals Ancient Magnetic Sensors

Scientists have uncovered compelling evidence that mysterious giant magnetic fossils dating back 56 million years were biologically engineered for exceptional magnetic sensing capabilities, according to research published in Communications Earth & Environment. Using revolutionary 3D imaging technology, researchers have determined that these so-called magnetofossils contain sophisticated internal magnetic structures optimized for detecting the intensity of Earth’s magnetic field.