Almost 70 different known species of sea snakes roam around our oceans and they usually get to be about 2 meters long. They are equipped with paddle-like tails and many have laterally compressed bodies that give them an eel-like appearance. However, unlike eels, sea snakes don’t have gills and must regularly swim to the surface to breathe. Despite their (in)famous potent venom, sea snakes are generally very mild-tempered and will not bite unless provoked. Best to watch their beauty from a safe distance!