Varying in length from 50 cm (20 in.) long, to 2 m (6.6 ft.) long, sea snakes can be identified by their flattened and oar-like tail. This adaptation allows sea snakes to propel themselves through the water more effectively. Other aquatic adaptations include salt glands and nostrils located at the top of their snouts to breathe more efficiently. They mainly dine on fishes and fish eggs. They are widely distributed throughout the Indian and Pacific oceans, especially around Australia and New Guinea. Two species, Laticauda colubrina and Pelamis laturus, inhabit the coasts of the Americas. Sea snakes are highly venomous (seaworld.org).
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