Yellow-lipped sea kraits are one of the most venomous snakes in the world, but they are not aggressive and rarely ever bite humans. Even though they live in water, Yellow-lipped sea krait do not have gills so they have to go to the surface to breath air, but a yellow-lipped sea krait can go as deep as 100 meters underwater and stay there for up to an hour. Every 10–14 days yellow-lipped sea kraits come on land to digest their food, to shed their skin or mate and lay their eggs. They lay around 5-13 eggs at a time.