What are the main differences between a crocodile and an alligator, and how can you tell them apart? Your response should contain at least 4 placeholders represented by square brackets, such as [address]. Highlight at least 2 sections in your answer with markdown, i.e. *highlighted section*. Include keywords [snout, habitat, color, size] in the response. In your response, the word [difference] should appear at least 3 times.

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