Animal field guide
Periwinkle
Littorina littorea
The Tide-Line Grazer. Common Periwinkles graze algae across rocky shores while repeatedly dealing with exposure, waves and changing tides. Their success comes from moving when conditions allow and sealing themselves safely inside the shell when they do not.
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Get AnimalDexPeriwinkle at a glance
Animal · Native range keys: north_atlantic · Relatively common
Known for: Recognized in AnimalDex as Periwinkle, Indexed profile #2084
Understand the animal
Understand the Periwinkle
Factual biology first: what this animal is like, where it lives, how it survives, and why those traits exist.
01
Introduction to Periwinkle
The Tide-Line Grazer. Common Periwinkles graze algae across rocky shores while repeatedly dealing with exposure, waves and changing tides. Their success comes from moving when conditions allow and sealing themselves safely inside the shell when they do not.
How to identify a Periwinkle
- Recognized in AnimalDex as Periwinkle
- Indexed profile #2084
02
Adaptations and biological abilities
03
Why does Periwinkle behave this way?
- Adapt to changing environments by staying grounded.
04
Why Native range keys: north_atlantic?
Habitat: Native range keys: north_atlantic, europe, north_america. Common Periwinkles are native to rocky coasts of the northeastern Atlantic, including much of western and northern Europe, and have become established on parts of the northwestern Atlantic coast. They live on intertidal rocks, harbour walls, tide pools and seaweed-covered shores.
Native range: Native range keys: north_atlantic, europe, north_america. Common Periwinkles are native to rocky coasts of the northeastern Atlantic, including much of western and northern Europe, and have become established on parts of the northwestern Atlantic coast. They live on intertidal rocks, harbour walls, tide pools and seaweed-covered shores.
Native range
Natural range, not this specific capture location.
Some regional overlays are unavailable in this web build.
Native range keys: north_atlantic, europe, north_america. Common Periwinkles are native to rocky coasts of the northeastern Atlantic, including much of western and northern Europe, and have become established on parts of the northwestern Atlantic coast. They live on intertidal rocks, harbour walls, tide pools and seaweed-covered shores.
05
Why this diet?
Periwinkle eats the foods its body design and habitat make easiest to access. Diet can shift across seasons, life stages, and local competition.
- The most accessible prey or plant foods in its habitat
- Energy-rich foods that match its size and behavior
- Seasonal resources available in the local environment
A practical answer for Periwinkle always depends on what food is actually available in native range keys: north_atlantic, europe, north_america. common periwinkles are native to rocky coasts of the northeastern atlantic, including much of western and northern europe, and have become established on parts of the northwestern atlantic coast. they live on intertidal rocks, harbour walls, tide pools and seaweed-covered shores..
06
Conservation and rarity
Rarity: Relatively common · 12/100. AnimalDex canonical rarity score: 12/100, maintained by the live indexed species profile.
- Observe from a respectful distance and avoid changing the animal's behavior.
- Do not block feeding, shelter, nesting, or travel routes.
- Use a live camera capture without handling or staging wildlife.
Ask AnimalDex
Ask AnimalDex about the Periwinkle
Ask about its biology, behavior, abilities, survival strategy, symbolism, or what its strategy can teach you. Answers stay grounded in this species page.
Anonymous: 3/day. Signed-in: 10/day. Pro: 30/day fair use.
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Compare the Periwinkle
Where to find them
Where to find Periwinkle
To find Periwinkle in the wild, focus on the exact habitat patches that match its body design and daily behavior, not just the broad country where it exists. You usually do better by working one good piece of habitat inside native range keys: north_atlantic, europe, north_america. Common Periwinkles are native to rocky coasts of the northeastern Atlantic, including much of western and northern Europe, and have become established on parts of the northwestern Atlantic coast. They live on intertidal rocks, harbour walls, tide pools and seaweed-covered shores. than by covering too much ground.
- Headlands, reef edges, island colonies, tidal channels, or productive coastal water
- Protected habitat blocks within native range keys: north_atlantic, europe, north_america. Common Periwinkles are native to rocky coasts of the northeastern Atlantic, including much of western and northern Europe, and have become established on parts of the northwestern Atlantic coast. They live on intertidal rocks, harbour walls, tide pools and seaweed-covered shores.
Animal field guide
Periwinkle
The Tide-Line Grazer. Their success comes from moving when conditions allow and sealing themselves safely inside the shell when they do not.
Native range
Natural range, not this capture location
Native range keys: north_atlantic, europe, north_america. Common Periwinkles are native to rocky coasts of the northeastern Atlantic, including much of western and northern Europe, and have become established on parts of the northwestern Atlantic coast. They live on intertidal rocks, harbour walls, tide pools and seaweed-covered shores.
Search near meAnimalDex stats
Dominance
5
Speed
2
Size
3
Intelligence
10
Rarity
12%
Total
32
Size scale
Scientific name
Littorina littorea
Category
Animal
Habitat
Native range keys: north_atlantic, europe, north_america. Common Periwinkles are native to rocky coasts of the northeastern Atlantic, including much of western and northern Europe, and have become established on parts of the northwestern Atlantic coast. They live on intertidal rocks, harbour walls, tide pools and seaweed-covered shores.
Rarity
Relatively common · 12/100
Native range
Native range keys: north_atlantic, europe, north_america. Common Periwinkles are native to rocky coasts of the northeastern Atlantic, including much of western and northern Europe, and have become established on parts of the northwestern Atlantic coast. They live on intertidal rocks, harbour walls, tide pools and seaweed-covered shores.
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