Question of the Day #1429

Behind him Gunnersaurus bared his teeth and menacingly pawed the air

From the headline of this article at The Guardian.

  上記の文で、bare one's teethの意味は？
In the sentence above, what does "bare one's teeth" mean?

  答えは、コメントに書いてください。
Write your answer in the Comments.

明日、ここに答えを書きます。
I will add the answer and other remarks here tomorrow.

 

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