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Snakes control blood flow in 'spectacles'

snakes spectacles blood flow vision

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#1    Still Waters

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Posted 31 October 2013 - 04:39 PM

Snakes can control blood flow in their "spectacles", scientists have found.

The animals are known for their lack of eyelids, and instead have a transparent scale covering their eyes for protection.

These "spectacles" contain blood vessels, and researchers investigated how this arrangement does not obscure vision.


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#2    pallidin


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Posted 31 October 2013 - 05:32 PM

Nature never ceases to amaze me.

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