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Bogong moths use the Earth's magnetic field to get their bearings on long distance migrations
Each Spring, bogong moths emerge from beneath the soil of south-eastern Australia's plains and take to the air on the first leg of their annual migration, after spending the winter gorging themselves on plant roots to fuel up.
For a long time, scientists wondered how these moths — just a few centimetres long — made the incredible migration of over 1,000 kilometres to alpine caves in New South Wales and Victoria, and then back to their birthplace, to mate and reproduce in winter.
http://www.abc.net.au/news/science/2...igrate/9886194
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