What is a "sea snake"?

A sea snake is a venomous reptile that has adapted to live in the ocean, with a flattened body and paddle-like tail for efficient swimming. They are highly specialized for aquatic environments and are found in warm tropical waters around the world. Sea snakes possess powerful venom and are known for their ability to breathe air while spending most of their time underwater. They play important ecological roles in marine ecosystems but are also of medical interest due to the potency of their venom.