A beautiful adult male ribbon #eel in open water, looking for a new home! How do we know it’s a male? Easy! Ribbon eels are a very singular marine species. All individuals start off their lives as males. They are born black with a yellow dorsal fin. The black turns to blue when they become mature males. And finally, towards the end of their lives, when they reach a size of about 1 meter long, they turn completely yellow and transform into females. 📷 @abyssdivecenteramed | World Ocean Day