Some species of sea snake have developed "comically small" heads as a result of nosing around in sand eel burrows.
A research team led by zoologist Kate Sanders of the University of Adelaide discovered that while some sea snakes require a larger skull in order to indulge their diet of larger spiny fish, others prefer to forage in narrow sand eel burrows for food thus benefitting from a more slender cranium.
By: Philippa Warr, Edited by: Ian Steadman
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via Wired.co.uk
http://www.wired.co.uk/news/archive/2013-03/20/small-headed-sea-snakes
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