Search results
Results from the WOW.Com Content Network
Scorpion venom is a mixture of neurotoxins; most of these are peptides, chains of amino acids. [114] Many of them interfere with membrane channels that transport sodium, potassium, calcium, or chloride ions. These channels are essential for nerve conduction, muscle contraction and many other biological processes. Some of these molecules may be ...
It was only the second genus of scorpion as all species known to this date were included in the sole genus Scorpio Linné, 1758. Leach found Scorpio occitanus Amoreux, 1789 to differ from the other species of Scorpio known to him by having eight eyes (two median eyes and six lateral eyes) instead of six (two median eyes and four lateral eyes).
The emperor scorpion (Pandinus imperator) is one of the largest species of scorpion in the world, with adults averaging about 20 centimetres (7.9 in) in length and a weight of 30 g. [2] However, some species of forest scorpions are fairly similar to the emperor scorpion in size, and one scorpion, Heterometrus swammerdami , holds the record for ...
The largest members are found among Androctonus (fattail scorpions), Apistobuthus, Centruroides, and Parabuthus; and can reach 12 cm (about 5 in). Most of them have between two and five pairs of eyes. Some resemble the Vaejovidae.
They have one pair of median eyes at the front of the cephalothorax and up till five pairs of lateral eyes on each side of the head, a pattern also found in scorpions. [18] [19] Whip scorpions have no venom glands, but they have glands near the rear of their abdomen that can spray a combination of acetic acid and caprylic acid when they are ...
The propeltidium contains the eyes, the chelicerae that, in most species, are conspicuously large, the pedipalps and the first two pairs of legs. Meso- and metapeltidium contains the third and fourth pairs of legs. [7] [8] [9] The chelicerae serve as jaws and in many species also are used for stridulation. Unlike scorpions, solifuges do not ...
Compound eyes have a wide field of view, and can detect fast movement and, in some cases, ... Most arthropods lay eggs, [70] but scorpions are ovoviviparous: ...
Amblypygi is an order of arachnids also known as whip spiders or tailless whip scorpions, not to be confused with whip scorpions or vinegaroons that belong to the related order Thelyphonida. The name "amblypygid" means "blunt tail", a reference to a lack of the flagellum that is otherwise seen in whip scorpions.