🦀Acorn barnacles are crustaceans related to crabs and shrimp.
🌊Barnacles filter out plankton and debris using their feathery legs called cirri.
🐟Barnacles have a long penis, relative to their body size, that can taste, smell, and probe for ripe eggs in neighbors.
🥚Barnacles are hermaphrodites, simultaneously male and female, and can engage in one-on-one or group sexual encounters.
👶Barnacles protect their fertilized eggs and care for their baby larvae called nauplii.