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Spider-tailed horned viper
MordeThe spider-tailed horned viper is a venomous snake with a tail tip that looks like a spider. It lives only in the mountains of western Iran and the nearby eastern part of Iraq. It wiggles its tail to lure birds close enough to catch.1
Como recoñecelo
- The scales above each eye rise up into small horns.1
- About 16 to 17 scales sit between the horns.1
- The bulb-shaped tail tip is bordered by long, drooping scales that look like spider legs.1
- The scales on the body are rougher than those of other species in its genus.1
- It has 15 pairs of subcaudal scales (the scales on the underside of the tail).1
Adoita confundirse con: It looks very similar to other Pseudocerastes vipers in the region, especially around the head. The unusual, spider-like tail tip is the feature that sets it apart.1
Poder da pezoña
A pezoña sae polos seus cairos ou dentes cando morde.
Que fai a súa pezoña?
Its venom mainly acts as a cytotoxin, which destroys cells across a wide variety of cell types, and it has minor neurotoxic effects, which attack the nerves. It is a procoagulant, meaning it makes blood clot, and reports describe clotting in about 13 seconds. The venom affects birds most strongly, and also affects mammals and amphibians. A 2021 study by Brouw found it has a coagulant effect on humans and affects Factor X, a protein needed for blood clotting.1
Que perigoso é para as persoas?
Perigo para as persoas: GraveUnha mordedura precisa un médico. As mortes son moi raras.No human bite has ever been recorded in the wild. How severe its effects would be on people is not known.1
Se morde
- Mantén a persoa quieta e tranquila, mantén o membro mordido á altura do corazón, quítalle aneis e cousas apertadas e vai rápido a un hospital.
Chama sempre primeiro ao teu número de emerxencias (112, 000, 911). Isto son consellos xerais de primeiros auxilios, non consello médico. Primeiros auxilios básicos
Mantente a salvo
- Nunca toques, collas nin molestes un animal salvaxe, aínda que sexa pequeno e aínda que pareza durmido ou morto.
- Déixalle espazo. Se atopas un, mantén a calma, recúa amodo e déixao ir polo seu camiño.
- Se un te morde: mantén a calma, non te movas, chama ao teu número de emerxencias (112, 000, 911) ou vai rápido a un hospital. Lembra como era, unha foto axuda.
Non vai a por ti. Usa a súa pezoña para cazar comida ou para defenderse, e prefire con moito agocharse. Máis sobre como estar a salvo
En que lugar do mundo?
Que tamaño ten?
Canto mide?
mide coma 3 bananas postas en fila
podería percorrer 100 metros en 110 segundos (o humano máis rápido precisa 9,6)Que tamaño ten Spider-tailed horned viper comparado CONTIGO?
Só son contas no teu navegador. Non se garda nin se envía nada a ningures.
Que rápido é?
Datos
Its tail is moved in a figure-of-eight pattern, and it moves faster when birds are nearby. Field studies have confirmed that this is a lure and not random movement.1
Footage of it luring migrating birds appears in the Asia episode of the BBC series Seven Worlds, One Planet, narrated by David Attenborough.1
A digested lark was found in the stomach of one of the specimens used to describe the species, supporting the idea that the tail lures birds.1
Its tail tip is a form of aggressive mimicry, where a predator looks like something else to attract its prey.1
Several other snakes, such as the sidewinder and the green tree python, also use the tip of their tail as a lure, but none has the elongated scales that look like arthropod legs.1
A specimen collected in 1968 was first identified as a Persian horned viper. It was only recognised as a separate species and described in 2006.1
Desmontamitos
Mito: The strange tail tip was caused by a parasite, a deformity or a tumour.
Verdade: Early specimens were thought to have a damaged tail tip. In fact, the spider-like tail is a natural feature that the snake uses to lure birds.1
De onde veñen os datos
- Spider-tailed horned viper (Wikipedia (CC BY-SA 4.0))
- Pseudocerastes urarachnoides (iNaturalist): nomes e clasificación.
- Venom Wiki: o nivel de perigo, o tamaño típico e a velocidade estimada son nosos. Mira como os calculamos: Como valoramos o perigo.
Cada dato desta páxina ten un número que leva á súa fonte. Se nos equivocamos nalgo, sentímolo, somos fans dos animais, non unha revista científica. Dínolo en [email protected] e arranxarémolo.
O escorpión ten fame! Venom Wiki é un proxecto dunha soa persoa: gratis, sen anuncios e sen rastrexadores. Unha pequena propina axuda a mantelo en liña.Dálle de comer ao escorpiónMáis do mesmo grupo: Víboras e outras serpes da familia
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Russell's viperVíboras e outras serpes da familiaMortal
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Eastern Russell's viperVíboras e outras serpes da familiaMortal
Northeast African carpet viperVíboras e outras serpes da familiaMortal
Deathstalker
Indian cobra
King cobra
Asian giant hornet
Komodo dragon
Spanish fly