Do snails have a sense of smell, and can they hear?
I’ve been on the case for the sense of smell thing – molluscs including the gastropod snails have patches of sensory epithelia (skin) near the gills (or lungs in land dwelling forms) call OSPHRADIA (singular osphradium) and these are effectively their noses!! They don’t have any ears as such, but obviously sense vibration and movement mainly with the large foot muscles.
