
The Apple Snails lay their eggs above water to protect them from fish and underwater creatures eating them.
Apple Snails have both gills and lungs, so they are Amphibians. Their mantle cavity is divided to support both respiratory systems. They also have separate genders unlike some snails, which have both genders. They spend most of their time underwater.
Apple Snails are the primary food of Snail Kites and Limpkins. I once saw a Limpkin nest. Alongside the nest was maybe 25 Apple Snail shells piled up ready for the chicks.