The joy of walking along any rocky shoreline is the anticipation of finding something of interest. In this case it was a number of barnacles clinging to the rocks.
Taken on a wet day in Donegal, Ireland.
Barnacles are crustaceans that have jointed legs and shells of connected overlapping plates. Instead of crawling after food, they glue themselves to rocks, ships, pillings, abalones, and maybe even whales and wait for food to wash by. When barnacles are under water or when a wave washes over them, they reach out little feathery barbed legs to strain out plankton and absorb oxygen.
Panasonic Lumix TZ7