Barnacles Go To Unbelievable Lengths to Hook Up
Season 9 Episode 6 | 3m 58s | Video has closed captioning.
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!
Problems Playing Video? | Closed Captioning