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Eserese katuun nke Spider-tailed horned viper
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Spider-tailed horned viper

Pseudocerastes urarachnoides
Gbasara aha ya: The scientific name comes from Ancient Greek words meaning tail, spider and 'like', because of its spider-like tail tip.1
Ọ chọrọ dọkịtaỌ naghị egbukarị egbu, mana ịta ya chọrọ dọkịta.
Viper na adder ỊtaNri ya: Anụ
Ihe ize ndụ nye mmadụ: Ọ dị njọỊta ya chọrọ dọkịta. Ọnwụ anaghị adịkarị ma ọlị.

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

Ebe obibi
Western Iran and the eastern part of Iraq, near the Iran-Iraq border, mainly on the western side of the Zagros Mountains1
Eshia
Ụlọ
It lives at higher elevations, mostly on rocky ground made of gypsum, and prefers deep cracks and holes in the rock. These spots trap humidity and moisture during hot summers. During the day it is most often found in the shade of a shrub.1
Ogologo
60 cm (2 ft)3
nha okenye nkịtị
Ọsọ kacha elu
ihe dị ka 3.4 km/h (2.1 mph)
N'elu ala, nchepụta
Gịnị ka ọ na-eri?
It eats birds, including the Isabelline shrike and several warbler species. It waves the tip of its tail in a figure-of-eight pattern to lure insect-eating birds within striking range.1
N'ezie!Foto Spider-tailed horned viper
Spider-tailed horned viper. Foto: Omid Mozaffari. Public domain, Wikimedia Commons.

Otú ị ga-esi mata ya

  • 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

A na-agwakọkarị ya na: 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

Ike nsị

Ịta

Nsị na-esi n'eze nsị ya ma ọ bụ eze ya apụta mgbe ọ na-ata.

Gịnị ka nsị ọ na-agba na-eme?

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

Kedu otú o si dị egwu nye mmadụ?

Ihe ize ndụ nye mmadụ: Ọ dị njọỊta ya chọrọ dọkịta. Ọnwụ anaghị adịkarị ma ọlị.

No human bite has ever been recorded in the wild. How severe its effects would be on people is not known.1

Ọ bụrụ na ọ tara

  • Mee ka onye ahụ ghara imegharị ahụ, dịkwa jụụ, debe aka ma ọ bụ ụkwụ ahụ ọ tara n'ogo obi, wepụ mgbanaka na ihe ndị kekọrọ ahụ ike, kpọga ya ụlọ ọgwụ ngwa ngwa.

Na-ebu ụzọ kpọọ nọmba mberede gị mgbe niile (112, 000, 911). Nke a bụ ndụmọdụ enyemaka mbụ n'ozuzu, ọ bụghị ndụmọdụ ọgwụ. Isi ihe enyemaka mbụ

Nọrọ na nchekwa

  • Emetụla anụ ọhịa aka, ejidela ya, emekwala ya ihe ọjọọ, ọbụna obere, ọbụna ma ọ dị ka ọ na-ehi ụra ma ọ bụ nwụọ anwụ.
  • Nye ya ohere. Ọ bụrụ na ị zutere otu, dị jụụ, laghachi azụ nwayọ, hapụ ya ka ọ gaa ụzọ ya.
  • Ọ bụrụ na otu tara gị: dị jụụ, emegharịla ahụ, kpọọ nọmba mberede gị (112, 000, 911) ma ọ bụ gaa ụlọ ọgwụ ngwa ngwa. Cheta ka o si dị, foto na-enye aka.

Ọ naghị achụ gị. Ọ na-eji nsị ya ejide nri ma ọ bụ chebe onwe ya, ọ ga-akakwa mma n'anya ya ịzo onwe ya. Ihe ndị ọzọ gbasara ịnọ na nchekwa

Ebee n'ụwa?

AfrịkaEshiaYuropUgwu AmerikaNdịda AmerikaỌstrelia na Oshenia

Ọ hà aṅaa?

Kedu otú o si dị ogologo?

Spider-tailed horned viper ogologo ya dị ihe dị ka 60 cm (2 ft)Nwamba ụlọ ihe dị ka 50 cm (1.6 ft)Nkịta ihe dị ka 1 m (3.3 ft)
dị ogologo dị ka unere 3 a tọgbọrọ n'ahịrịnwere ike ịgba ọsọ mita 100 n'ime sekọnd 110 (mmadụ kacha ọsọ chọrọ 9,6)

Kedu otú Spider-tailed horned viper si hà ma e jiri ya tụnyere GỊ?

Naanị mgbakọ na mwepụ n'ime browser gị. Ọ dịghị ihe echekwara ma ọ bụ ezigara ebe ọ bụla.

Kedu otú o si agba ọsọ?

ọ dị mma ịmara

Eziokwu

1

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

2

Footage of it luring migrating birds appears in the Asia episode of the BBC series Seven Worlds, One Planet, narrated by David Attenborough.1

3

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

4

Its tail tip is a form of aggressive mimicry, where a predator looks like something else to attract its prey.1

5

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

6

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

Onye na-ekpughe akụkọ ụgha

Akụkọ ụgha: The strange tail tip was caused by a parasite, a deformity or a tumour.

Eziokwu: 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

Maka ndị ọkachamara nsị

Aha sayensị
Pseudocerastes urarachnoides
Otu
Viper na adder
Ezinụlọ
Viperidae2
Usoro
Squamata
Kọntinent dị iche iche
Eshia
Ihe ize ndụ nye mmadụ
3 / 5: Ọ dị njọ3

Ebe eziokwu ndị a si

  1. Spider-tailed horned viper (Wikipedia (CC BY-SA 4.0))
  2. Pseudocerastes urarachnoides (iNaturalist): aha na nhazi ọkwa.
  3. Venom Wiki: ọkwa ihe ize ndụ, nha nkịtị na nchepụta ọsọ bụ nke anyị. Lee otú anyị si achọpụta ha: Otú anyị si atụ ihe ize ndụ.

Eziokwu ọ bụla dị na peeji a nwere nọmba na-egosi ebe o si. Ọ bụrụ na anyị mehiere ihe, ndo, anyị bụ ndị hụrụ anụmanụ n'anya, ọ bụghị akwụkwọ akụkọ sayensị. Gwa anyị na [email protected], anyị ga-edozi ya.

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