What are barnacles?

Barnacles (balanus glandula) are sticky little crustaceans related to crabs, lobsters, and shrimps.

What's the Deal with Barnacles? - Ocean Conservancy

Goose Barnacles or what are those funny looking things?

Cthamalus fragilis

What Whale Barnacles Know

How do barnacles reach and attach themselves to ships? - Quora

Barnacles – Local Ocean Conservation

Barnacles (Cirripedia)

Barnacles encrusting wood (Cayo Costa Island, Florida, USA…

Barnacles are not Molluscs

Beloved Barnacles

The Barnacle Salish Magazine

Some Barnacles Can Move Around to Improve Feeding Position