Asp Viper

Asp Viper

Vipera aspis

Silhouette: Alex Slavenko · PhyloPic

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability ~20% · Possible
at Ordesa y Monte Perdido National Park
10 Verified sightings at Ordesa y Monte Perdido National Park From 2019 to 2026
423 Verified sightings across all 8 parks From 2019 to 2026
April Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Asp Viper

Vipera aspis is a viper species found in southwestern Europe. Its common names include asp, asp viper, European asp, and aspic viper, among others. Like all other vipers, it is venomous. Bites from this species can be more severe than from the European adder, V. berus; not only can they be very painful, but approximately 4% of all untreated bites are fatal. The specific epithet, aspis, is a Greek word that means "viper." Five subspecies are currently recognized, including the nominate subspecies described here.

The species grows to an average total length of 60–65 centimetres (24–26 in). Males reach a maximum total length of 85 cm (33 in), females rarely more than 75 cm (30 in). Males, however, are a little slimmer than females. The tail is very short: one-seventh to one-ninth of total body length in females, and one-sixth to one-eighth in males.

The head is broad, triangular and quite distinct from the neck. The tip of the snout is slightly but distinctly upturned. The rostral scale is generally higher than it is wide, touching 2 to 3 scales on the upper side of the snout. Dorsally, the snout is flat with distinct and slightly raised sharp margins. The nasal scale... Wikipedia →

Global Distribution

Warmer areas are where this animal is recorded most often.

Parks Where Found

# Park Country Daily sighting probability
1 Mercantour National Park 🇫🇷 France
~30%
2 Aigüestortes National Park 🇪🇸 Spain
~30%
3 Pyrénées National Park 🇫🇷 France
~30%
4 Vanoise National Park 🇫🇷 France
~30%
5 Cévennes National Park 🇫🇷 France
~20%
6 Ecrins National Park 🇫🇷 France
~20%
7 Ordesa y Monte Perdido National Park 🇪🇸 Spain
~20%
8 Triglav National Park 🇸🇮 Slovenia
Insufficient data

Quick answers

What are the chances of seeing a Asp Viper in Ordesa y Monte Perdido National Park?

About 20% of wildlife watchers report a Asp Viper sighting in Ordesa y Monte Perdido National Park, based on 10 verified sightings from GBIF citizen-science data.

When is the best time to see Asp Viper in Ordesa y Monte Perdido National Park?

April has the highest sighting rate for Asp Viper in Ordesa y Monte Perdido National Park in our monthly data.

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