<story><title>How elephants avoid cancer (2015)</title><url>https://www.nature.com/articles/nature.2015.18534</url></story><parent_chain></parent_chain><comment><author>cosbgn</author><text>One theory is that they actually get so many cancers that they fight each other and never reach the stage where they would become harmful for the Elephant. A good video about this was made by Kurzgesagt – &lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;youtube.com&amp;#x2F;watch?v=1AElONvi9WQ&quot; rel=&quot;nofollow&quot;&gt;https:&amp;#x2F;&amp;#x2F;youtube.com&amp;#x2F;watch?v=1AElONvi9WQ&lt;/a&gt;</text></comment>
<story><title>How elephants avoid cancer (2015)</title><url>https://www.nature.com/articles/nature.2015.18534</url></story><parent_chain></parent_chain><comment><author>ginko</author><text>Who added the question mark to the title and why? At least make it &amp;quot;How do Elephants Avoid Cancer?&amp;quot; so it&amp;#x27;s a grammatically correct sentence.</text></comment>