The Australasian Darter – Anhinga novaehollandiae – is our single member of the Anhinga genus, which has just four species.
All of its members are commonly known as “snake birds”.
You could consider their “snake” as a spearhead, with a brain-powered, spring-loaded, feathered shaft.
The shaft’s spring-loading is via their neck’s unique hinge mechanism, at the 8th & 9th vertebrae.
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