Shield limpet masterpiece

As these limpets slowly moved and ate the algae on the bottom of this tide pool they left a cleared trail showing the path that each individual limpet took, creating a sort of abstract art that maybe only Koko the gorilla could appreciate. I thought it was pretty cool.The second pic is a tide pool only a few feet from the other one. This limpet has a highly variable shape and coloration depending on its habitat.