(of fish) migrating from salt water to spawn in fresh water, as salmon of the genera Salmo and Oncorhynchus (distinguished from catadromous). Origin of anadromous.
A: A snail scrapes its food, rather than chews it like we humans do. A flexible structure called the radula in the snailâs mouth is lined with neatly organized rows and columns of tiny tooth-like projections. The snail moves its radula over the food, scrapes off bits of it, and swallows.
Be careful that the calcium does not contain any harmful salts or is not too alkaline to burn the snails. Snails eat solid food by grazing around and scraping it with their radula â a rasplike structure of tiny teeth used for scraping food particles off a surface and drawing them into the mouth.