Sea snakes are a group of marine reptiles found primarily in warm coastal waters of the Indian Ocean and Pacific Ocean. They are known for their elongated bodies and flattened tails, which help them swim efficiently. Most species are highly adapted to life in the water, with lungs that allow them to hold their breath for long periods. These snakes are generally non-aggressive and feed mainly on fish and eels. While some species possess venom, they rarely pose a threat to humans. Sea snakes are also important for marine ecosystems, as they help control fish populations and serve as prey for larger predators.