As air breathers, sea snakes (Hydrophiinae) have to rise to the surface regularly, making them vulnerable to air-borne predators like this white-bellied sea eagle (Haliaeetus leucogaster). Although most sea snakes have potent neurotoxic venom, they have small fangs, and are generally reluctant to bite. While it is not known if the eagle is immune to the snake’s venom, it is likely that the tough scales on its feet and the thick feathers on its legs offer it a measure … Read More
Sentries of the Sea – Sea Snakes along the Indian Coast
Multiple lineages of snakes evolved independently over time to colonise different marine habitats. Sea snakes are a recent lineage of elapid snakes with terrestrial origins from Australian snakes and diversified largely within the Indo-Pacific Ocean. Phylogenetic studies date sea snake evolution back to 6-8 million years but rapid speciation seems to have occurred 2-3 million years ago in Southeast Asia. Sea snakes are the most speciose (species-rich) group of aquatic snakes, contributing to 85% of the marine reptile fauna. The … Read More
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