As far as research goes, it sounds pretty intense: pumping the stomachs of 500-plus alligators—"live and alert" ones at that. 

It was part of James Nifong's study on whether American alligators on the Atlantic and Gulf coasts eat sharks, and the answer might surprise you: yes.

The small variety, that is, but a press release calls it the "first scientific documentation of a widespread interaction between the two predators." In fact, the Kansas State University researcher tells National Geographic that when he first broached with alligator experts the question of whether alligators eat sharks, some of them thought he was kidding.

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