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termites.jpgso-called magnetic termites visualize the magnetic north-south axis emergently by aligning their huge nests (sometimes more than 2m high) almost perfectly along this imaginary line. early researchers were convinced the ants are somehow aware of Earth's magnetic field, although recent investigations show they simply orient themselves to the path of the sun, to receive sunlight in the early morning & late evening. the sight of hundreds of them lined up together is truly impressive.
another great view: a recently changed official map (2004) showing that 33% (from 4.7% originally) of the Great Barrier Reef is protected as Marine National Park.