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Both the alligator and the crocodile have a pair of extra long teeth in their lower jaws. The alligator has two pits in his upper ,jaw, and when he closes his mouth the long, lower teeth fit right into these pits, out of sight. The long, lower teeth of the crocodile fit into grooves on the outside of his upper Jaw. He cannot hide them, and when his mouth is closed they add that secret smile to his bumpy face.

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13y ago

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