How cheerfully he seems to grin
The crocodile’s grin is the way in which he fools unsuspecting fish into approaching him. The crocodile is a metaphor for strangers or child predators because he seems friendly on the outside, but he has an ulterior motive for attracting fish. The phrase “don’t take candy from strangers” carries the same message as avoiding the crocodile’s grin because they both serve to warn children of the dangers of the outside world.
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