Lacking a tongue, bamboo sharks (Chiloscyllium plagiosum) swallow with their shoulder bones. Other tongue-less sharks and fish species likely use a similar method of swallowing. The finding comes from the lab of Ariel Camp, a postdoctoral researcher at Brown University’s Department of Ecology and Evolutionary Biology. Using state of the art X-ray imaging technology, Camp and her team filmed the internal going-ons of bamboo sharks having lunch. These tongueless critters, it seems, rely on their shoulder-blades to create suction when it’s time to swallow.
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