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>
    <querypage name="Ancientpages">
      <results>
        <page value="20080613165321" timestamp="2008-06-13T16:53:21Z" ns="0" title="Implications of Rewiring Bacterial Quorum Sensing" />
        <page value="20080822222023" timestamp="2008-08-22T22:20:23Z" ns="0" title="Simple Models for Biomembrane Structure and Dynamics" />
        <page value="20080823044709" timestamp="2008-08-23T04:47:09Z" ns="0" title="The Possibility of Automated Experiments for Inference of Metabolic Models" />
        <page value="20080826153316" timestamp="2008-08-26T15:33:16Z" ns="0" title="On the origin of symmetry in biology: Protein oligomers" />
        <page value="20080902173705" timestamp="2008-09-02T17:37:05Z" ns="0" title="Discovering the role of Protein Dynamics in RNA recognition motifs" />
        <page value="20080930174956" timestamp="2008-09-30T17:49:56Z" ns="0" title="Modelling of the Mitotic Spindle Assembly Checkpoint using SimBiology" />
        <page value="20081001232650" timestamp="2008-10-01T23:26:50Z" ns="0" title="Origin of the Domestic Dog" />
        <page value="20081001232724" timestamp="2008-10-01T23:27:24Z" ns="0" title="HIV Vaccines" />
        <page value="20081001232758" timestamp="2008-10-01T23:27:58Z" ns="0" title="An Engineer&#039;s View of the Cell" />
        <page value="20081001233429" timestamp="2008-10-01T23:34:29Z" ns="0" title="Contact Us" />
      </results>
    </querypage>
  </query>
  <query-continue>
    <querypage qpoffset="10" />
  </query-continue>
</api>