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          <td valign="top" background="images/design/red/surround_title_s.gif"><span class="sectiontext"><font color="#FF6600"><a href="alien.html" class="sectionlink">Kharaa 
            Data</a> :: <a href="alien_species.html" class="sectionlink">Species</a>: 
            Evolutions</font></span></td>
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                              <p><b>Summary:</b> the Kharaa can travel up their 
                                own family tree, changing their &quot;race&quot;, 
                                and evolving extraordinary abilities. Evolutions 
                                are broken down into three categories &#150; <a href="alien_evolutions_d.html">Defensive</a>, 
                                <a href="alien_evolutions_m.html">Movement</a>, 
                                and <a href="alien_evolutions_s.html">Sensory</a>. 
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                              <p> <img src="images/images/10red_data.gif" width="13" height="10"> 
                                When it was first noticed that the aliens seemed 
                                to be modifying themselves over the course of 
                                a prolonged engagement &#150; growing more resistant 
                                to gunfire, or becoming utterly silent &#150; it was 
                                assumed that they were reacting to our actions, 
                                and developing immunities much like a virus does. 
                                The truth is more complex.</p>
                              <p>Just as a marine structure contains coded information 
                                that allows a ship or base's nanotech to perform 
                                new, military grade, functions, so do the aliens 
                                begin with base-level resources, and construct 
                                structures to increase their combat abilities. 
                                The difference is, a Kharaa defensive tower (for 
                                instance) is less like a computer, and more like 
                                a time capsule. It contains information similar 
                                to a Hive's, but more specific &#150; this information 
                                describes variations of creatures from the Kharaa's 
                                history: a genetic family tree. When a Kharaa 
                                gains a new ability, it is evolving from its base 
                                form, down some specialized branch of that tree: 
                                growing more sophisticated, and without fail, 
                                deadlier. This fast-forward evolution allows for 
                                dozens of variations of alien: each supposedly 
                                suited to some environment, lost in the Kharaa's 
                                past. Similar to Earth species that may have arctic, 
                                desert and jungle variants, that while all the 
                                same kind of animal, have evolved into unique 
                                sub-species. </p>
                              <p>Multiple chambers appear to also offer more and 
                                more information, improving the effectiveness 
                                of each evolution. Once more than three chambers 
                                are active, this improvement plateaus.</p>
                              <p>Since the Kharaa have probably never seen man-made 
                                environments like ours, and since humans don't 
                                always attack the same way twice, they don't choose 
                                just one variation. They tend to evolve a wide 
                                range of species types &#150; ranging from brawlers, 
                                with increased speed and armor, to assassins, 
                                with silent movement and enhanced senses.</p>
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                                    <p align="center"><b><a href="alien_evolutions_d.html">Defensive<br>
                                      <br>
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                                    <div align="center"><b><a href="alien_evolutions_s.html">Sensory<br>
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