Certain birds may have compass information mapped directly onto their vision, much as fighter pilots have ‘head up displays’ overlaying flight information on their view of the skies.
It’s well known that birds, such as the European Robin, can detect the Earth's magnetic field in order to help them navigate on long migratory flights.
This ‘compass’ sense must be associated with the eyeball, because the birds cannot detect magnetic fields in darkness.
But now scientists from the UK and Singapore have shown that birds may really ‘see’ the invisible force of magnetism, giving them a compass on top of their normal vision: rather like aircraft ‘head up displays’ which overlay crucial navigation information on a transparent screen in front of the pilot.
Lees meer: University of Oxford
It’s well known that birds, such as the European Robin, can detect the Earth's magnetic field in order to help them navigate on long migratory flights.
This ‘compass’ sense must be associated with the eyeball, because the birds cannot detect magnetic fields in darkness.
But now scientists from the UK and Singapore have shown that birds may really ‘see’ the invisible force of magnetism, giving them a compass on top of their normal vision: rather like aircraft ‘head up displays’ which overlay crucial navigation information on a transparent screen in front of the pilot.
Lees meer: University of Oxford
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