SPECIES: Tinca tinca

MY EYES HAVE A PANORAMA APP

iD magazine - - Nature -

Its eyes are not much big­ger than a thumb­nail— and yet Tinca tinca can see pretty much ev­ery­thing at a glance. That’s be­cause the an­i­mal’s red­dishyel­low eyes are sit­u­ated on the sides of its head and cover al­most 180 de­grees each. The re­sult: a nearly 360- de­gree panoramic view that en­com­passes front and back. A tiny blind spot at the back of its body is the only sneak at­tack zone for preda­tors. An­other high-tech fea­ture: Un­like hu­man eyes, each Tinca tinca eye has four ( rather than three) types of cones so the an­i­mals are also able to per­ceive ul­tra­vi­o­let light— short- wave light rays that are com­pletely in­vis­i­ble to hu­mans. But be­ing able to see more doesn’t nec­es­sar­ily trans­late into an abil­ity to see bet­ter. So while the an­i­mal’s sight is very sharp for up to 10 cen­time­ters, ev­ery­thing be­yond that is a blur.

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