Here is an overview of the achatina (aka snail.)

You can tame a snail exclusively with sweet vegetable cakes. When tamed they also only consume sweet vegetable cake. They can take anywhere from 1-8 cakes to tame. (Levels 1-150) They always tame with max bonus levels. Never hit them in the shell because they take much less torpor damage. Try and aim for their head. These guys drop chitin and raw meat. (They can also drop angler gel in old mobile.) They also defecate achatina paste. Achatina paste is used as a substitute for cementing paste. When tamed, they will passively produce one organic polymer in their inventory every 60 minutes and its spoil timer will be 3x slower along with corrupted nodule. It has a 90% weight reduction for achatina paste, organic polymer, and corrupted nodule. They produce achatina paste in their inventory every minute. (Everything they produce caps at 100) They can wear hats. They can be picked up by everything but the tapejara and tropeognathus. That is everything I know! Have an amazing day and thank you for reading. :)