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Files in this Data Supplement:
Standard video of Rana pipiens swallowing a cricket.
Lateral view of Rana pipiens swallowing a cricket. Swallowing involves movements of the head, hyobranchial apparatus, jaws, tongue and eyes. Notice that eye retraction is rapid, the eyes remain retracted for a relatively long time, and that eye protraction is slower than eye retraction.
X-ray video of Rana pipiens feeding on a cricket.
Lateral x-ray view of Rana pipiens swallowing a cricket. Lead balls mark the position of the eyes and the cricket has been marked with barium powder to facilitate viewing. Note that as the eyes retract into the oropharynx, the cricket moves back towards the esophagus.
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