Sea Snakes Sea snakes represent another group of potentially dangerous reef organisms. These snakes have numerous interesting characteristics which enable them to live a life at sea. For example, one lung is reduced and can store lots of air. Therefore, besides simply increasing the amount of time the snake can spend submerged, it can also function as a swim bladder does in a fish- adjusting amounts of air in the lung can help control the depth at which the snake will be able to swim. Another interesting sea snake fact involves that of reproduction.
Many snakes are able to give birth to live young while at sea.
Sea snakes are interesting and often beautifully colored animals, but should be strictly regarded as dangerous. Venom from these snakes is more potent, even, than land snakes. Sea snakes are not aggressive, and would, in most cases, prefer to avoid swimmers, snorkellers, and divers. In spite of their implications, bites from sea snakes are often almost painless. In addition, the snake may bite, but not release any venom.