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  3. Grass Snake

One of the 10 colubrid snakes on WAnimals

Reptiles · Squamata · Colubridae

Grass Snake

Natrix natrix

Least Concern

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

Spotted something wrong?

When threatened it performs an extremely convincing act of thanatosis: it rolls onto its back, gapes its mouth and goes completely limp, playing dead.

Weight

96 g on average

Size

70 cm – 1.5 m

Life expectancy

10 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.

Sighting difficulty

Easy

Freshwater
46countries86parks17same family

Fun facts

  • It releases a foul-smelling cloacal secretion as part of its death-feigning display.
  • It feeds mainly on amphibians such as frogs and toads, and occasionally fish.
  • It lives in wetlands, ponds, slow-flowing rivers and grassy ground across much of Europe.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (reptile)
Habitat and environment
Wetlands, ponds, slow-flowing rivers and grassy ground across much of Europe and western Asia
Birth weight
18-20 cm long at hatching
Size at birth
18-20 cm long at hatching
Sexual maturity
2-3 years
Gestation / incubation
42-71 days
Litter / clutch size
12 to 40 eggs per clutch, often laid in heaps of rotting vegetation such as compost
Life expectancy in captivity
Documented record of up to 20-28 years

Sources consulted: A-Z Animals; Wildside Holidays; AnAge (genomics.senescence.info); Fishipedia; Glenlivet Wildlife; Wildlife Online (barred grass snake comparison); Animals.net; Wildlife Vagabond; IERS

Where to find it

Best time: From March to October, by day, near ponds, streams and damp meadows; it swims very well and hunts amphibians in the water.

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Where to see it

Parks and dive sites where this species has been documented — showing 10 of 86.

Related species

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

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

Keep exploring

Based on what we already know about grass snake.

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See full glossary
This page in other languages: Español · Deutsch · Français · Português · Italiano

The pins mark the parks where its presence is documented.

See its range on the interactive map→
BerchtesgadenGermany
TriglavSlovenia
Picos de EuropaSpain
Ordesa y Monte PerdidoSpain
Aiguestortes i Estany de Sant MauriciSpain
Peneda-GeresPortugal
CévennesFrance
PlitviceCroatia
BiałowieżaPoland
Danube DeltaRomania
See all 86 parks
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Natrix maura

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Horseshoe Whip Snake

Hemorrhois hippocrepis

Smooth SnakeLeast Concern

Smooth Snake

Coronella austriaca

Aesculapian SnakeLeast Concern

Aesculapian Snake

Zamenis longissimus

Near Threatened

Four-lined Snake

Elaphe quatuorlineata

Western Marsh HarrierLeast Concern

Western Marsh Harrier

Circus aeruginosus

CountriesSpain
ParksBerchtesgadenGermany
TagsCarnivore
Carnivore
Diurnal
Solitary
Reptile
Freshwater

Europe41

Asia5

Spain
Germany
Poland
Hungary
Estonia
France
Albania
Andorra
Austria
Belarus
Belgium
Bosnia and Herzegovina
Bulgaria
Croatia
Cyprus
Czechia
Denmark
Estonia
Finland
France
Germany
Greece
Hungary
Ireland
Italy
Kosovo
Latvia
Liechtenstein
Lithuania
Luxembourg
Moldova
Montenegro
Netherlands
North Macedonia
Norway
Poland
Portugal
Romania
San Marino
Serbia
Slovakia
Slovenia
Spain
Sweden
Switzerland
Ukraine
United Kingdom
Armenia
Azerbaijan
Georgia
Russia
Türkiye