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September 30 2018

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August 21 2018

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July 31 2018

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July 27 2018

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July 20 2018

We Finally Know How Birds Can See Earth's Magnetic Field

nanonaturalist:

myfrogcroaked:

A special eye protein is helping birds to “see” Earth’s magnetic field! If that’s not cool, I don’t know what is.

The ability to see Earth’s magnetic field, known as magnetoreception, relies on the presence of specifically the blue wavelength of light. The complex process involves “radical” intermediate molecules which are sensitive to Earth’s magnetic field. The Earth’s magnetic field, as it relates to the direction the bird is facing, could alter the intermediate radical molecules differently, giving the bird a sense for where it is facing in relation to the Earth’s magnetic field.

While the exact way birds visualize Earth’s magnetic field is part of further investigation, scientists believe the Cry4 protein acts as sort of a filter over the bird’s vision. This filter would allow birds to see a sort of compass of the Earth and direct their migratory flights accordingly.

Source: Forbes

!

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July 16 2018

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July 07 2018

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July 06 2018

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July 04 2018

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July 01 2018

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June 08 2018

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May 15 2018

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May 10 2018

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May 04 2018

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May 02 2018

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March 24 2018

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March 21 2018

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January 28 2018

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January 14 2018

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