While some snails may be able to survive for short periods out of water, trapdoor snails rely on water for:
* Breathing: They use gills to breathe underwater.
* Movement: Their bodies are adapted for gliding over surfaces in water.
* Feeding: They typically feed on algae and other aquatic plants.
So, if you find a trapdoor snail out of water, it's best to gently return it to a suitable aquatic environment.