Rowers have been advised not to travel upstream in Oyster Creek until the gator has been captured.
More than half of all crocodilians – which includes crocodiles, alligators and caimans – are facing extinction, scientists say.
He was visiting the Big Cypress National Preserve in Florida when the reptile lurched out of the water towards his GoPro.
Police in Virginia launched an urgent response last week after terrified residents reported an alligator lurking in a pond - only to find it was an...