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little bird against a hawk
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Little Bird Against A Hawk

Hawks are widely reputed to have visual acuity several times that of a normal human being. This is due to the many photoreceptors in the retina (up to 1,000,000 per square mm for Buteo, against 200,000 for humans), an exceptional number of nerves connecting these receptors to the brain, and an indented fovea, which magnifies the central portion of the visual field.
Description
Hawks have always been known to have sharp vision and to be very able hunters. Within the hawk species, the female is generally larger than the male.

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Filename:542039.jpg
Album name:Fauna & Flora
Rating (1 votes):55555
Keywords:#little #bird #against #hawk
Filesize:42 KiB
Date added:Mar 05, 2013
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