Sanaa is a beautiful old city in the Middle East. In Sanaa, it is a tradition to carry beautiful knives, or tools, called "jambiya" An unusual animal called a " rhinoceros" is often killed to make these knives. How can people keep their tradition and save the rhinoceros?  <p><center><a href="http://elt.heinle.com/ng/tour/">For a guided tour click on the image:  <img src="/images/guidedtouricon.gif" border=0></a></center>