It is in their shell
snails do need other snails around them to be happy because they have remarkable senses and brains.
Apple snails are freshwater aquatic snails. Garden snails are land snails.Apple snails have lungs and gillsGarden snails have lungs onlyApple snails skin is thin and translucent (with slime)Garden snails skin is thick and leathery (with slime)All apple snails have two sets of antennaeGarden snails have species with one and two sets.
water snails but not regular snails
Sea snails Freshwater snails
little brains
Apple Snails will eat other snails if you don't feed them. If you feed them, then they are alright.
Snails do not have bristles. Snails do have a raspy tongue though.
no snails are not harmful.
Snails are invertebrates. :)
snails are hervibores?
the protein from the other snails shells
Many species of land or aquatic snails exist.