This picture is a snail, not a slug. If you search up what a slug is, it will show you a creature that has no shell. Since the animal in the picture has a shell, it is not a slug, but is a snail instead. Therefore, I dislike this nonogram puzzle. Please correct the title before assuming it's a slug.

gaby

snail, slugs don't have shells.

Funny

Slug

een slek