Skip to content
WAnimals
  • Map
  • Species
  • Parks
  • Diving
Log inCreate account
WAnimals

The guide for travellers and animal lovers: discover, plan and share your wild adventures around the world.

Discover wildlife

  • Species
  • Ecosystems
  • Glossary
  • Tags

Explore places

  • Map
  • Countries
  • Parks
  • Diving

Plan experiences

  • Guides

Learn

  • Blog

Resources

  • About us
  • How we build our profiles
  • Help centre
  • Contact
  • Install the app

Follow us

Account

  • Log in
  • Create account

© 2026 WAnimals. All rights reserved.

Terms of servicePrivacyCookiesLegal notice
MapSpeciesParksDiving
  1. Home
  2. Species
  3. Asp Viper

One of the 12 vipers on WAnimals

Asp Viper (Vipera aspis)

Reptiles · Squamata · Viperidae

Asp Viper

Vipera aspis

Least Concern

The species is abundant and widely distributed; it faces no significant short-term risk.

Spotted something wrong?

Its name recalls the asp that, in the account of the Roman historian Velleius Paterculus, killed the Egyptian queen Cleopatra, though that asp is usually identified with the Egyptian cobra and the historical evidence for how she actually died remains disputed.

Weight

up to 400 g

Size

60 cm – 85 cm

Life expectancy

20 years

Diet

Carnivore

Feeds mainly on other animals.

Activity

Diurnal

Active mainly during the day.

Social structure

Solitary

Lives and hunts alone, joining others only to breed.

Temperate forestMountain
7countries28parks22same family

AI-generated images: illustrations, not photographs.

Fun facts

  • It is venomous, and its bite can cause serious envenoming in people.
  • It eats small mammals such as rodents, and occasionally birds and lizards.
  • It lives in mountain clearings, scrub, open woodland and stone quarries of western Europe.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (reptile)
Habitat and environment
Mountain clearings, scrub, open woodland and stone quarries of western Europe
Birth weight
Born fully developed and able to feed within a few days of birth
Size at birth
Born fully developed
Sexual maturity
2-4 years (later in the wild than in captivity)
Gestation / incubation
3-4 months
Litter / clutch size
5 to 12 live young per litter (an ovoviviparous species)
Life expectancy in captivity
A documented record of up to 10 years in a laboratory study

Sources consulted: Critter Science · The Snake Guide · AnAge (genomics.senescence.info) · SnakeEstate · PMC (envenomation Marseille poison centre study)

Where to find it

Best time: From March to October, in mid-morning, when it basks on scree, field edges and walls in northern Iberia, the Pyrenees and the Alps.

Loading map…

The pins mark the parks where its presence is documented.

Where to see it

Parks and dive sites where this species has been documented — showing 10 of 28.

Related species

Other species in the catalogue with the most in common with Asp Viper — same habitat, park, country, tags or family.

Same taxonomic family
Same taxonomic family
Same taxonomic family
Same taxonomic family
Shares a park
Shares a park

Keep exploring

Based on what we already know about asp viper.

Share an experience, a fun fact or a tip for seeing the asp viper.
See full glossary
This page in other languages: Español · Deutsch · Français · Português · Italiano
See its range on the interactive map→
Swiss National ParkSwitzerland
Gran ParadisoItaly
VanoiseFrance
Stelvio (Stilfserjoch)Italy
ÉcrinsFrance
MercantourFrance
Picos de EuropaSpain
Ordesa y Monte PerdidoSpain
Aigüestortes i Estany de Sant MauriciSpain
CévennesFrance
See all 28 parks
Lataste's ViperVulnerable

Lataste's Viper

Vipera latastei

Seoane's ViperNear Threatened

Seoane's Viper

Vipera seoanei

Least Concern

Nose-horned Viper

Vipera ammodytes

AdderLeast Concern

Adder

Vipera berus

Western CapercaillieLeast Concern

Western Capercaillie

Tetrao urogallus

Common BuzzardLeast Concern

Common Buzzard

Buteo buteo

CountriesItaly
ParksSwiss National ParkSwitzerland
TagsCarnivore
Carnivore
Diurnal
Solitary
Reptile
Temperate forest
Mountain
Italy
France
Spain
Switzerland
Andorra
Germany
San Marino