“Sam lay rolled in blankets beside Frodo. ‘I had a funny dream an hour or two before we stopped, Mr. Frodo,’ he said. ‘Or maybe it wasn’t a dream… I saw a log with eyes!’ ‘The log’s all right,’ said Frodo. ‘There are many in the River. But leave out the eyes!'”
– Lord of the Rings, book 2, chapter 9
Like floating driftwood with eyes, the alligator is exceptionally camouflaged as it lies submerged in the dark swamp waters. Often lying as still as a stone for hours with only its eyes and nostrils above the surface, unwitting prey may often come within chomping distance unaware of their danger. A sudden sideways slash of the head and a large fish is trapped in those unrelenting jaws. A forward thrust of the tail and a duck or otter may disappear down that previously unseen gullet. A strong thrust may even propel the alligator several feet out of the water to nab the unsuspecting heron from its perch.
iNaturalist observation: https://www.inaturalist.org/observations/49850860