What are barnacles?

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

What are barnacles?

Barnacles: A Beginning

Five Facts: Barnacles – Research News

Barnacles - Seattle Aquarium

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

What Whale Barnacles Know

Barnacles on Flat Oyster shells – Jessica's Nature Blog

What Whale Barnacles Know

Barnacles trust their sperm to the waves