Spider-Tailed Horned Viper

They like to hide in crevices on the sides of cliffs, waiting for prey.
Spider-Tailed Horned Viper Scientific Classification
Scientific name
Pseudocerastes urarachnoides
Spider-Tailed Horned Viper Physical Characteristics
Grey, Tan
Approx. 1 pound
Spider-Tailed Horned Viper Distribition

With the skill of a fly- angler, the spider- trailed horned viper draws its feathery target to its ruin.

The spider- trailed horned viper is a poisonous snake that lives in a tiny location in western Iran. Researchers initially found it in 1968 yet believed the tail was an arbitrary anomaly. Yet, it was 2006 prior to researchers had an online sampling to take a look at and figured out that the special tail showed they had a brand-new species.

Spider- Trailed Horned Viper Fantastic Truths

  • The species makes use of a back attraction (the tail!) that resembles a spider– a sensation referred to as feeding mimicry.
  • These vipers mix right into their setting all right that birds come down on them, so concentrated on the “spider” that they do not see the snake up until it’s far too late.
  • They can strike in.2 secs.
  • A number of the regional birds have actually determined the viper’s video game– it shows up that just the seeing birds drop target to its appeals.

Spider- Trailed Horned Viper Area

They have actually just been discovered in a couple of locations in western Iran and are unusual sufficient that mentions accepted include them to Appendix II to limit worldwide profession.

Spider- Trailed Horned Viper Scientific Name

The spider- trailed horned viper, or Pseudocerastes urarachnoides, becomes part of the Viperidae family and implies incorrect horned, spider- like tail. Vipers are a family of poisonous snakes with retracting fangs that infuse poison deep right into their target. They exist in a lot of components of the globe other than Siberia, Ireland, the polar circle, and Australia.

Pseudo = incorrect

cerastes = incorrect

ura = tail

arachna = spider

ides = like

Spider- Trailed Horned Viper Population & &Conservation Status

The IUCN detailed it as “information lacking” since there isn’t adequate information to figure out whether they are endangered orendangered Its array is little sufficient that there’s a problem amongst the scientific area. Researchers look for even more details and intend to have an extra in-depth research study done.

Appearance & & Summary: Just How to Determine the Viper

These vipers are special- looking. Their eyes are tan- tinted with upright students. They have harsh skin with keeled ranges that mixes well with the granite of their residence array; and ranges that expand upwards from the eyes, developing “horns.” Their most special attribute is their tail: they have a spheric, fleshy- looking end with long, slim ranges that hang from it.

Photos & & Videos of the Spider- trailed Horned Viper

Video clip revealing the viper capturing a bird, utilizing its tail as an appeal.

The coloration of the spider-tailed horned viper depends the locality in which it is found, but generally they have grayish-brown scales.
The pigmentation of the snake relies on the region in which it is discovered, yet typically, they have grayish- brownish ranges.

reptiles4all/Shutterstock. com

The tail of the spider-tailed horned viper (Pseudocerastes urarachnoides) has the appearance of a spider and is used to lure unsuspecting birds or other prey within reach of the viper.
The tail of the snake (Pseudocerastes urarachnoides) has the appearance of a spider and is utilized to tempt innocent birds or various other target available of the viper.

reptiles4all/Shutterstock. com

The spider-tailed horned viper (Pseudocerastes urarachnoides) has a unique tail that has a bulb-like end and that is used to catch birds. It lives in Iran.
The snake (Pseudocerastes urarachnoides) has an one-of-a-kind tail that has a light bulb- like end which is utilized to capture birds. It stays in Iran.

reptiles4all/Shutterstock. com

Poison: Just How Harmful is a Spider- trailed Horned Viper?

It is poisonous and will certainly strike when endangered. Nonetheless, it does not appear to be hostile in the direction of individuals unless caught.

Actions & & Humans

This viper is an ambush killer with a spin. It shakes completion of its tail, making it show up to life. Its preferred food is of the feathery range, and a number of video clips reveal a spider- trailed horned viper drawing a bird close sufficient to strike. Nonetheless, it does not limit its diet to birds– the spider- trailed horned viper likewise pursues arthropods, rodents, and lizards.

Individuals have actually become its most considerable predators, and its special hind end has actually brought in enthusiasts.


  1. IUCN, Available here: https://www.iucnredlist.org/species/164664/5916336#assessment-information
  2. CITES, Available here: https://cites.org/eng/app/appendices.php
  3. CITES, Available here: https://cites.org/sites/default/files/eng/com/AC/30/Inf/E-AC30-Inf-13.pdf
  4. The Reptile Database, Available here: https://reptile-database.reptarium.cz/species?genus=Pseudocerastes&species=urarachnoides
  5. Herpetologica, Available here: http://www.herpetologica.org/BAHE/BAHE27(1)_%5B240%5D_04_HNat11.pdf
  6. Research Gate, Available here: https://www.researchgate.net/publication/308415570_Annual_activity_pattern_of_pseudocerastes_urarachnoides_squamata_ophidia_viperidae_with_notes_on_its_natural_history
  7. Research Gate, Available here: https://www.researchgate.net/publication/280348452_Avian_deception_using_an_elaborate_caudal_lure_in_Pseudocerastes_urarachnoides_Serpentes_Viperidae
  8. National Library of Medicine, Available here: https://pubmed.ncbi.nlm.nih.gov/33540884/

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