european red slug arion rufus eating a mushroom.

antennae arion autumn background biology body boletus botany bright cap close colour control crawling detail eat eatable eating ecology edible european fauna feet find fleshy food forest fresh front full fungus garden gastropoda gourmet grass green hat head ingredient isolated light macro mollusc mollusca mollusk moss movement moving natural nature orange pest plant red redhead rufus side slime slimy slow slug slugs tentacles terrestrial white