"Fly eye" redirects here. For Calvin Harris's record label, see Fly Eye Records.
Insects and all mandibulates have compound eyes, with the exception of some myriapods that have stemmata
Although arachnids (like this spider) don’t have compound eyes, xiphosurans and many other extinct chelicerates do
Apposition eyes are the most common form of eye, and are presumably the ancestral form of compound eye. They are found in all arthropod groups, although they may have evolved more than once within this phylum.[1]
Some annelids and bivalves also have apposition eyes. They are also possessed by Limulus, the horseshoe crab, and there are suggestions that other chelicerates developed their simple eyes by reduction from a compound starting point.[1] Some caterpillars appear to have evolved compound eyes from simple eyes in the opposite fashion.[citation needed]
The arthropods ancestrally possessed compound eyes, but the type and origin of this eye varies between groups, and some taxa have secondarily developed simple eyes. The organ's development through the lineage can be estimated by comparing groups that branched early, such as the velvet worm and horseshoe crab to the advanced eye condition found in insects and other derived arthropods.
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Land, Michael F.; Fernald, Russell D. (1992), "The Evolution of Eyes", Annual Review of Neuroscience, 15 (1): 1–29, doi:10.1146/annurev.ne.15.030192.000245, PMID 1575438.
are the most common form of eye, and are presumably the ancestral form of compound eye. They are found in all arthropod groups, although they may have...
A compound eye is a visual organ found in arthropods such as insects and crustaceans. It may consist of thousands of ommatidia, which are tiny independent...
an enormous variety of eye types are found in arthropods to overcome visual problems or limitations. Use of the term simple eye is flexible, and must be...
eye through all stages of their life. Most arthropods have one or more simple eyes, called ocelli, between their main, compound eyes. Arthropodeye Mollusc...
compound eye. Many gastropods have stalked eyes; the eye can be retracted into the stalk itself in the presence of danger. Arthropodeye Parietal eye Sensory...
is more likely that they developed through separation. Arthropodeye Spider anatomy Simple eye in invertebrates Peaslee, Alan & Wilson, Graeme (May 1989)...
Some arthropods, including many Strepsiptera, have compound eyes of only a few facets, each with a retina capable of creating an image. With each eye producing...
other eye colors. White cats having one blue and one other-colored eye are called "odd-eyed" and may be deaf on the same side as the blue eye. This is...
Arthropods (/ˈɑːrθrəpɒd/ ARTH-rə-pod) are invertebrates in the phylum Arthropoda. They possess an exoskeleton with a cuticle made of chitin, often mineralised...
independent picture elements. The number of ommatidia in the eye depends upon the type of arthropod and range from as low as 5 as in the Antarctic isopod Glyptonotus...
Arthropods are covered with a tough, resilient integument, cuticle or exoskeleton of chitin. Generally the exoskeleton will have thickened areas in which...
Holoptic refers to one of the ways in which the arthropodeye develops, particularly the eyes of various species of insects. Unlike dichoptic and cycloptic...
which help the fish map migration routes. Arthropodeye Matthiessen's ratio Mollusc eye Parietal eye Simple eye in invertebrates Visual system Meyer‐Rochow...
greater divergence of the eye axis than humans, enabling them to rotate their pupils farther in any direction. The divergence of the eye axis of dogs ranges...
Microscope, no less gaudy then do the whole Feathers; for, as to the naked eye 'tis evident that the stem or quill of each Feather in the tail sends out...
genes. The morphological data consists of ommatidial structures (see arthropodeye), the presence of neuroblasts, and the form and style of axonogenesis...
(molluscs, annelid worms and arthropods), the other by the deuterostomes (chordates and echinoderms). The functional unit of the eye is the photoreceptor cell...
The (pan)arthropod head problem is a long-standing zoological dispute concerning the segmental composition of the heads of the various arthropod groups...
lobes") are extinct marine arthropods that form the class Trilobita. Trilobites form one of the earliest known groups of arthropods. The first appearance of...
Kylinxia is a genus of extinct arthropod described in 2020. It was described from six specimens discovered in Yu'anshan Formation (Maotianshan Shales)...
In the compound eye of invertebrates such as insects and crustaceans, the pseudopupil appears as a dark spot which moves across the eye as the animal is...
Cambropachycope is a genus of small (1.5 mm (0.059 in) long) extinct Cambrian arthropods, known from the Orsten lagerstätten in southern Sweden. It appears to...
can live in human homes. It is an insectivore; it kills and eats other arthropods, such as insects and arachnids. In 1758, Carl Linnaeus described the species...
humans, toads do not have involuntary saccadic eye movements and they also cannot perform "tracking eye movements" (Ewert 1980). They must, therefore,...
"Evolution of eye development in arthropods: Phylogenetic aspects". Arthropod Structure & Development. Origin and Evolution of Arthropod Visual Systems...
are a group of arthropods that are a part of the subphylum Crustacea (/krəˈsteɪʃə/), a large, diverse group of mainly aquatic arthropods including decapods...
The area occupied by the abdomen is called the abdominal cavity. In arthropods, it is the posterior tagma of the body; it follows the thorax or cephalothorax...
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