Sex in the Wild: Gorillas Face Off. Published Feb 12, 2008 at 1:47 PM EST Updated May 18, 2010 at 7:01 PM EDT. By Sharon Begley . Newsweek Is A Trust Project Member. FOLLOW. news article.

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"How to stay alive during a face-to-face encounter with a gorilla. How to Survive is a Webby Award-winning series offering expert tips for surviving disasters, attacks, and life's toughest situations.

(CNN) – When you were in school, did you ever just want to make faces at your teacher? Yeah, we thought so. Well, this gorilla feels the same way. Take a look at Calaya, sticking out her bottom ...

She has observed more than 500 gorilla matings in the wild—and none were face-to-face. "It is an interesting observation and raises questions about why they sometimes engage in it," she said.