Good evenin' all! I often think about trivial things for one reason or another and lately I noticed something about yawning: I spotted my cat yawn and then the other cat copying, at which point the smaller cat got up and strolled off, while the big cat remained on his turf. I then though 'haha, small cat got pwned', then after a few minutes of humour thought of something a bit more intelligant that relates to humans ie why you yawn when the person sat next to you does. My theory, embrace thyself, is that yawning evolved (in a sense) as a means for group members to compare their teeth and ultimatly their 'manhood' (more relating to cats etc).. if that makes sense? for example, Neandathol A, lets call him Neil, yawns, triggering Neandathol B, lets call him Pat, to yawn too. This could be Neils voluntay or involuntary method of telling Pat that he's more manly, at which point Pat yawns back to challenge Neil. The victor (however victory in teh game of yawning is measured), then triumphs; ie if Neils teath are better, Patwill bog off. Any thoughts?