2. Yellow-bellied sea snake (Hydrophis platurus)
LD50: 0.07
Yellow-bellied snake is perhaps one of the most widespread aquatic snake species. It inhabits waters and coastal belts of warm Indo-Pacific oceans. Although it dwells in the open sea, it is also usually found dwelling near the coast. It is easily recognizable for its yellow and black longitudinal stripes and paddle-like tail that helps it maneuver in the water. Although it is very unlikely to encounter humans, when bitten, the wound must be immediately treated, but luckily this snake’s fangs are relatively short (0.5 inches), and it injects only a tiny portion of venom.
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