Eastern Newt - Homing

Homing

Eastern newts home using magnetic orientation. Their magnetoreception system seems to be a hybrid of polarity-based inclination and a sun-dependent compass. Shoreward-bound eastern newts will orient themselves quite differently under light with wavelengths of ~400 mm than light with wavelengths of ~600 mm, while homing newts will orient themselves the same way under both short and long wavelengths. It is considered very likely that ferromagnetic material, probably biogenic magnetite, is present in the eastern newt's body.

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