Sea snails with a cone-shaped shell and a strong muscular foot that clamps them to rocks on the shore. At high tide they wander and graze algae with a tongue of iron-hardened teeth, then follow their own mucus trail back to their favourite spot.
Quick answers
Eaten in Portugal (lapas) and Asturias in Spain; in Ireland it was famine food, so tough it had to be boiled or roasted thoroughly.
At a glance
In the wild
- What it eats
- Algae scraped off rocks with its radula, a tongue with over 100 rows of teeth.
Did you know
Its teeth are the strongest natural material known, stronger than spider silk.
Over time its shell wears a shallow hollow, a "homescar", into the rock where it rests.
Worn teeth are thrown away as new ones grow, about one new row every 47 hours.
Often confused with
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