Furcula

This stylised bird skeleton highlights the furcula
Wishbone of a chicken

The furcula (Latin for "little fork"; pl.: furculae) or wishbone is a forked bone found in most birds and some species of non-avian dinosaurs, and is either an interclavicle or formed by the fusion of the two clavicles. In birds, its primary function is in strengthening the thoracic skeleton to withstand the rigors of flight.

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