A Virtual Tour of the NMNH: Osteology Hall of Bones

Swordfish

Xiphias gladius


Xiphias gladius
Fish have two sets of jaws. In the swordfish, the upper jawbones are elongated, forming the bill. A second, internal set of jaws is associated with the gills. The teeth of this set process food, which then passes through the esophagus.


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