What term specifically defines the yellow-bellied sea snake's existence living permanently away from coastlines in the open ocean?
Answer
Pelagic
The defining characteristic of the yellow-bellied sea snake is its commitment to a fully oceanic existence, meaning it spends its entire lifespan adrift on the surface waters of the open ocean basins, such as the tropical Pacific and Indian Oceans. This lifestyle is scientifically defined as being pelagic. This contrasts sharply with coastal species or those that retain connections to land. The designation 'pelagic' underscores the radical morphological and physiological transformations required for survival solely in the water column, far from shorelines or shallow coastal areas.

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