Yellow-Bellied Sea Snake

The Yellow-Bellied Sea Snake is a highly distinctive, fully pelagic species found across vast stretches of the Pacific and Indian Oceans, making it one of the most widely distributed snake species on Earth. Unlike most sea snakes, it spends its entire life at sea, never coming ashore.

It is venomous, possessing potent neurotoxic venom adapted for subduing fish prey, though bites to humans are extremely rare given its pelagic habits and generally docile temperament.

• Distinctive bicolored pattern: black or dark brown dorsum sharply contrasting with a bright yellow underside
• Laterally flattened, paddle-shaped tail for swimming, often with black and yellow spotting
• Small head, valvular nostrils on top of the snout for surface breathing
• Smooth scales
• Adult length typically 60-90 cm (24-35 in)

Fully pelagic, found drifting at the surface of open tropical and subtropical waters across the Pacific and Indian Oceans, often associated with current lines, drift lines, and flotsam where prey congregates. Never comes ashore voluntarily.

Spends its entire life at sea, floating passively with ocean currents and actively hunting small fish near the surface. Uses potent venom to quickly subdue fast-moving fish prey. Reproduction is viviparous, with females giving birth to live young at sea.