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Basic arrangement of spider eyes, viewed from above. Most spiders have eight eyes, which tend to be arranged into two rows of four eyes on the head region. The eyes can be categorised by their location and are divided into the anterior median eyes (AME), anterior lateral eyes (ALE), posterior median eyes (PME), and posterior lateral eyes (PLE).
Using its eyes to quickly navigate its web, A. labyrinthica is able to detect the plane of polarized light present, and position itself relative to it in order to maintain its orientation. [6] However, being a web building spider, A. labyrinthica does not rely exclusively on visual stimuli for navigation and orientation. [ 7 ]
Pashupatastra, an irresistible and most destructive personal weapon of Shiva and Kali, discharged by the mind, the eyes, words, or a bow. Varunastra, a water weapon (a storm) according to the Indian scriptures, incepted by Varuna. In stories it is said to assume any weapon's shape, just like water.
To aid further in netting prey, the spider places white fecal spots on the surface below the net and uses them for aiming. [7] Spiders also lack ears, but Deinopis use hairs and receptors (slit sensillae) on their legs to distinguish sounds at a distance of up to 2 meters. [8] [9]
Six-eyed spiders are spiders that, unlike most spider species, lack the principal pair of eyes, leaving them with only six eyes instead of the usual eight. [1]
Jo Denman and Tessa Parry-Wingfield, both 46 and of southwest London, had their eyes removed — Denman the right and Parry-Wingfield the left — about a year apart after they were both diagnosed ...
Most external appendages on the spider are attached to the cephalothorax, including the eyes, chelicerae and other mouthparts, pedipalps and legs. Like other arachnids, spiders are unable to chew their food, so they have a mouth part shaped like a short drinking straw that they use to suck up the liquefied insides of their prey.
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