Sea snake

Sea Snakes

Sea snakes are special snakes that spend most of their lives in the ocean. They belong to a group called elapids and are part of two smaller groups: Hydrophiinae and Laticaudinae. There are 69 different kinds of sea snakes!

Most sea snakes live only in saltwater, but some can also live in freshwater. They have special bodies that help them swim, like flat tails and long, thin shapes. Even though they look like fish, they cannot breathe underwater and must come up to breathe air. Sea snakes live in warm waters from the Indian Ocean to the Pacific Ocean.

Most adult sea snakes grow to be between 120 and 150 cm (4 and 5 ft) long. The largest sea snake, Hydrophis spiralis, can reach up to 3 m (10 ft). They have small eyes with round pupils and nostrils on top of their heads.

Sea snakes have special ways to breathe and manage salt in their bodies. They can breathe through the top of their skin, which helps them stay underwater longer. They also have special glands under their tongues that help remove extra salt from their bodies. Some sea snakes, called sea kraits, can move on land thanks to special scales on their bellies.

Sea snakes live in warm tropical waters of the Indian Ocean and the western Pacific Ocean. They are not found in the Atlantic Ocean or the Red Sea because of different salt levels. Most sea snakes prefer shallow waters near land, around islands, and in sheltered areas. They sometimes swim up rivers and have been seen far from the sea.

Sea snakes are usually calm and not likely to bite. They are active during both day and night. Sometimes large groups of sea snakes are seen together, especially near the Strait of Malacca in Malaysia.

Sea snakes eat small fish and sometimes young octopus. They are often seen with a special barnacle called the sea snake barnacle, which sticks to their skin. Most sea snakes have their babies in the water, but sea kraits lay their eggs on land instead of in the water.