Thursday, October 29, 2009

Birds can see Earth's Magnetic Field


After a study, scientists now believe that robins are able to "see" Earth's magnetic field, which helps them migrate. The information about the magnetic field is processed in a part of the birds' brains called "Cluster N". There is agreement in the scientific community that birds contain internal magnetic compasses. The new research suggests that this the sight of the magnetic field is possible through a complex mechanism in the eyes of the birds. Additionally, if the bird is missing the "Cluster N", it cannot properly align with the magnetic field.
This article interests me on many levels. For one, I am wondering if there are other creatures that are able to see the magnetic field and what effects it has on them. If they don't have it, do they suffer consequences like the robin? Another question I have is if the robins can be used to predict when the magnetic field will flip, potentially helping humans avoid the radiation exposure. However, I realize that only time will tell if this is the case. I would be very interested in learning more about this subject as well as the magnetic field of our planet in general.

http://www.telegraph.co.uk/earth/earthnews/6455338/Robins-can-see-Earths-magnetic-field.html
"Robins Can See Earth's Magnetic Field"
Telegraph.co.uk

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