https://www.23hq.com/bere/monkey bere en-us 23people http://www.23hq.com/resources/um-style/logo-20.gif http://blogs.law.harvard.edu/tech/rss https://www.23hq.com/rss/bere/monkey false https://www.23hq.com/bere/photo/1035957 <p><a href="https://www.23hq.com/bere/photo/1035957"><img src="https://www.23hq.com/777149/1035957_a0a1f2e5179259e06b6ba43ffbdb3bdc_standard.jpg" width="460" height="345" class="23-standard"/></a></p><p>can monkeys really smile?<br /> <a rel="nofollow" href="http://www.sandiegozoo.org/animalbytes/t-monkey.html">http://www.sandiegozoo.org/animalbytes/t-monkey.html</a><br /> Grinning, or pulling the lip up to show the teeth, may seem like a smile to us. But for monkeys this is a sign of aggression or anger, because biting is one way monkeys fight and defend themselves. Other signs of aggression include head bobbing, yawning (again, to show the teeth), and jerking the head and shoulders forward.</p><p>Photo by <a href="https://www.23hq.com/bere/">bere</a></p> https://www.23hq.com/bere/photo/1035957 Thu, 17 Aug 2006 08:14:59 GMT