The Fascinating Sex Life of Acorn Barnacles

TLDRAcorn barnacles have a unique and fascinating sex life, with armored plates, feathery legs, and long penises. They are hermaphrodites and nurture their babies until they hatch. The young barnacle larvae go on adventures in the sea, while the mature barnacles settle in and get to know their neighbors.

Key insights

🦀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.

Q&A

What are acorn barnacles?

Acorn barnacles are crustaceans related to crabs and shrimp.

How do barnacles filter out food?

Barnacles use their feathery legs called cirri to filter out plankton and debris from the water.

How long is a barnacle's penis?

A barnacle's penis can stretch up to eight times the length of its body.

Are barnacles male or female?

Barnacles are hermaphrodites, meaning they are simultaneously male and female.

How do barnacles care for their babies?

Barnacles protect their fertilized eggs and care for their baby larvae called nauplii.

Timestamped Summary

00:07Finding a date is hard enough in San Francisco, but it's especially tricky when you're stuck to a rock in the middle of the bay.

00:19Acorn barnacles have a wild sex life, being hermaphrodites and engaging in one-on-one or group sexual encounters.

01:03Barnacles are crustaceans related to crabs and shrimp, and they filter out plankton and debris using their feathery legs called cirri.

02:00Barnacles have a long penis relative to their body size, which can taste, smell, and probe for ripe eggs in neighbors.

02:49Barnacles protect their fertilized eggs and care for their baby larvae called nauplii.

03:29Mature barnacles settle in and get to know their neighbors.

03:36The video is the 150th episode of Deep Look, leaving a note in the comments if the viewer has been with them for a while.

03:45New viewers are encouraged to subscribe and receive notifications for new episodes.