No. snails are in the animal group called mollusks. This group includes, slugs, clams, oysters, octopuses, sea slugs, cuttlefish, squid and the nautilus. What makes these animals mollusks and not insects is the fact that they are soft bodied with either one large foot, or multiple tentacles, and have a shell, or a remnant of a shell inside they're body. They also have a mantle and some have a radula, which is a small curved mouth with a rough inside that is used to scape off plant material to eat. If you hold a snail on your hand, sometimes it will try to "taste" you and you can feel its little mouth trying to take a nibble. It doesn't hurt, it just feels a little bit like sandpaper.