Deep Look

Barnacles Go To Unbelievable Lengths To Hook Up (2022x6)

Air date: Apr 26, 2022

Acorn barnacles might look like jagged little rocks at low tide, but they have a surprisingly wild sex life. These crusty little animals — related to crabs and shrimp — have the longest penis of any animal relative to their body size. It's up to eight times the length of the barnacle itself!