Spider-tailed horned viper
The 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

Kaip jį atpažinti
- 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
Dažnai painiojamas su: 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
Nuodų galia
Nuodai išeina per iltis ar dantis, kai jis įkanda.
Ką daro jo nuodai?
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
Koks jis pavojingas žmonėms?
Pavojus žmonėms: RimtasPo įkandimo reikia pas gydytoją. Mirties atvejai labai reti.No human bite has ever been recorded in the wild. How severe its effects would be on people is not known.1
Jei jis įkanda
- Laikyk žmogų nejudantį ir ramų, įkąstą galūnę laikyk širdies lygyje, nuimk žiedus ir kitus veržiančius daiktus ir greitai nugabenk į ligoninę.
Visada pirmiausia skambink pagalbos numeriu (112, 000, 911). Tai bendri pirmosios pagalbos patarimai, o ne medicininė konsultacija. Pirmosios pagalbos pagrindai
Būk saugus
- Niekada neliesk, negaudyk ir neerzink laukinio gyvūno, net mažo, ir net jei jis atrodo miegantis ar negyvas.
- Palik jam vietos. Jei tokį sutiksi, išlik ramus, lėtai atsitrauk ir leisk jam eiti savo keliu.
- Jei toks tau įkando: išlik ramus, nejudėk, skambink pagalbos numeriu (112, 000, 911) arba greitai vyk į ligoninę. Įsimink, kaip jis atrodė, nuotrauka padeda.
Jis nesiruošia tavęs medžioti. Nuodus jis naudoja maistui sugauti arba apsiginti ir daug mieliau pasislėptų. Daugiau apie saugumą
Koks jis didelis?
Koks jis ilgas?
ilgas kaip 3 bananai, sudėti vienas po kito
galėtų nubėgti 100 metrų per 110 sekundžių (greičiausiam žmogui reikia 9,6)Koks didelis Spider-tailed horned viper, palyginti su TAVIMI?
Tik matematika tavo naršyklėje. Niekas neišsaugoma ir niekur nesiunčiama.
Koks jis greitas?
Faktai
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
Mitų griovėjas
Mitas: The strange tail tip was caused by a parasite, a deformity or a tumour.
Tiesa: 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
Iš kur faktai
- Spider-tailed horned viper (Wikipedia (CC BY-SA 4.0))
- Pseudocerastes urarachnoides (iNaturalist): pavadinimai ir klasifikacija.
- Venom Wiki: pavojaus lygis, tipiškas dydis ir greičio spėjimas yra mūsų pačių. Pažiūrėk, kaip juos apskaičiuojame: Kaip vertiname pavojų.
Kiekvienas faktas šiame puslapyje turi numerį, rodantį į jo šaltinį. Jei kažką supainiojome, atsiprašome, mes gyvūnų gerbėjai, o ne mokslo žurnalas. Parašyk mums [email protected] ir mes ištaisysime.
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