Yellow-Bellied Sea Snake Returns to California After Eight Years

A yellow-bellied sea snake washed ashore at Crystal Cove in Orange County, California, in September 2026. It was the first reported appearance of the venomous species in the state since 2018. The species is an ocean-dwelling reptile that usually lives in tropical and subtropical waters.

Yellow-Bellied Sea Snake: Basic Features

The yellow-bellied sea snake belongs to the group of sea snakes, which are fully marine reptiles. It is known for a yellow underside and a dark upper body. The species has potent venom and is generally sluggish out of water.

Distribution and Habitat

Yellow-bellied sea snakes are usually found in warm waters of the Pacific and Indian oceans. They are rarely seen far north of their normal range. Ocean currents and warm sea surface temperatures can carry them into unusual coastal areas.

California Sightings and Safety Advice

California has recorded six confirmed sightings of the yellow-bellied sea snake since 1972. The last sightings before 2026 were in January and November 2018 in Orange County. Beachgoers are advised not to touch the snake, not to return it to the water, and to inform lifeguards or wildlife officials.

Important Facts for Exams

• The yellow-bellied sea snake is a venomous marine reptile.
• Crystal Cove is a state park in Orange County, California.
• El Niño is a periodic warming of the central and eastern tropical Pacific Ocean.
• Sea snakes are adapted to marine life and are rarely found on land except when washed ashore.

Marine Animal Sightings in Southern California

Southern California waters have also recorded unusual marine animals such as hammerhead sharks and whale sharks during the same period. Such sightings are linked to changes in ocean temperature and current patterns in the Pacific Ocean.