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Scorpions are predatory arachnids of the order Scorpiones. They have eight legs and are easily recognized by a pair of grasping pincers and a narrow, segmented tail, often carried in a characteristic forward curve over the back and always ending with a stinger. The evolutionary history of scorpions goes back 435 million years.
The color of the body can be yellowish-tan to dark-brown, with the paired claws often a contrasting color. They may have two, four or no eyes. [6] Pseudoscorpions spin silk from a gland in their jaws to make disk-shaped cocoons for mating, molting, or waiting out cold weather, but they do not have book lungs like true scorpions and the ...
The legs are greenish. They usually have four eyes, but cave-dwelling species often have two or no eyes at all. The body length ranges from 1 to 5 mm. Specimens of Neobisiidae have two very long pedipalps with palpal chelae (pincers) which strongly resemble the pincers found on true scorpions.
Pulmonoscorpius is an extinct genus of scorpion from the Mississippian (Early Carboniferous) of Scotland.It contains a single named species, Pulmonoscorpius kirktonensis.It was one of the largest scorpions to have ever lived, with the largest known individual having an estimated length exceeding 70 cm (28 inches).
Palaeophonus resembles modern scorpions, but differs in having short, pointed legs, as opposed to longer legs ending in a pair of claws. It grew to a lengths of 2.5–3.5 in (64–89 mm). [5] These animals did not have eyes and therefore they were blind. [6] Palaeophonus seems to have been terrestrial. [7] [8]
A striped scorpion hiding among rocks at Taum Sauk Mountain State Park. A medium-sized scorpion that is rarely longer than 70 mm (up to around 2 3/4 in), the striped bark scorpion is a uniform pale-yellow scorpion that can be identified by two dark, longitudinal stripes on its carapace, with a dark triangle above the ocular tubercle.
Yellow eyes have become inherently associated with alligators, but eye color may vary depending on age. For example, juvenile alligators often exhibit a reddish reflection, while adults display ...
Glaucoma is a progressive condition the eye causes damage to the optic nerve. [7] The damage to the optic nerve is usually caused by intraocular pressure [8] of the eye being elevated. Glaucoma can be seen in dogs, and less commonly, cats. Treatment [9] can be in the form of ocular medication, like prescription eye drops.