Slimy Creatures: The Evolution Of Snails

Snail Evolution Snails are tiny slimy creatures. Mainly recognized by their characteristic shells, weirdly strange ability to stick to anything, and their odd questionable ooze that they leave behind. There are many different types of snails ranging from tiny too large. The smallest snail is called Daphniola eptalophas. The largest snail species is called the Giant African Land Snail (ALGALS). The most know relative of the snail family is the slug. A snail without its shell is just a slug. A snail without one has evolved in a single generation. Snails are the one of the only animals that can evolve in only one generation. This type of evolution has happened multiple
times in the Gastropada family. Snails evolved their living quarters many different times. Before evolution they lived in shallow water, after evolution they mostly live on land but some live in salt marshes, costal mud-areas, but prefers to live in slowly moving water. Muddy water lacks oxygen so they must go to the surface for oxygen. They have a mantel cavity which has gills and lungs, making breathing easier under water. They do not have to live in water or on land because they can live on both whenever they prefer, with the exception of others that can’t go in water. Fed on algae which has not changed. 58% of their bodyweight is water. Their eyes are near the base of their body, some of them have their eyes on their antennas. Calcium is stored in the digestive tract which is used for shell building