The apple snail is a freshwater snail belonging to the family Ampullariidae. Known for its large, round shell, it can grow up to 6 inches in diameter. These snails are often found in slow-moving waters, such as ponds and marshes, and are recognized for their ability to breathe air, which allows them to thrive in various aquatic environments. Apple snails are herbivorous, primarily feeding on aquatic plants and algae. They play a role in the ecosystem by helping to control plant growth. However, some species, like the Pomacea canaliculata, are considered invasive in certain regions, posing a threat to local ecosystems and agriculture.