Some sea snakes eat more than just fish, including crustaceans, and a few live exclusively on fish eggs. The yellow-bellied sea snake drinks water from the top of the ocean when it rains. This species can go as long as half a year before needing another drink of fresh water.
The term sea snake covers a wide range of snakes, although they are all in the cobra family. Unlike many reptiles, sea snakes give birth to live young in the sea, according to Animal Corner; the female carries the eggs inside her body until they hatch. The snakes surface to breathe air, but they can wait as long as a third of a day before doing so; they can use their skin to breathe, and they have a single large lung.Learn more about Snakes