You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allredirects garcontinue="Digger|1360" />
  </query-continue>
  <query>
    <pages>
      <page pageid="285" ns="0" title="The Circle of Life" />
      <page pageid="631" ns="0" title="Circle of Life" />
      <page pageid="637" ns="0" title="Can You Feel the Love Tonight" />
      <page pageid="733" ns="0" title="Beauty-spot" />
      <page pageid="1218" ns="0" title="Fearless Buzz" />
      <page pageid="1219" ns="0" title="Old Fearless Buzz" />
      <page pageid="1313" ns="0" title="Playing It Safe" />
      <page pageid="1571" ns="0" title="Can You Feel The Love Tonight?" />
      <page pageid="1788" ns="0" title="The Ostrich Egg" />
      <page pageid="1789" ns="0" title="Retter in der Not" />
    </pages>
  </query>
</api>