Hibernating snails 300-0 © Victoria Tucholka Shutterstock
Hibernating snails seal their opening with an “epiphragm,” a layer of dried mucus. (© Victoria Tucholka / Shutterstock)
Hibernating snails seal their opening with an “epiphragm,” a layer of dried mucus. (© Victoria Tucholka / Shutterstock)
Variations of the Cuban Painted snail, Polymita picta. (© Mark Brandon Shutterstock)
Earthworm movement. Each square represents a segment in either restricted or relaxed position. (Mokele/Wiki; cc by 3.0)
Earthworm labeled clitellum Holger Casselman Wikimedia CC BY-SA 3.0Lumbricus_rubellus_HC2
© Borbely Edit / Shutterstock.
Snail eating a carrot. (twistypigeon / Flickr; cc by 2.0)
Green Snail, Rhinocochlis nasuta. (Bernard Dupont) / Wiki; cc by-sa 2.0)
A snail’s eye. (Mac Jewell / Flickr; cc by 3.0)
Land snail (Euglandina Rosea). (Tim Ross / Wiki; PD)
Slug and slime trail. (Luis Parravicini / Flickr; cc by-nc-sa 2.0)