&gt; They can’t be suicidal<p>Maybe they could. We know of various parasites which turn their hosts suicidal: <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Behavior-altering_parasites_and_parasitoids" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Behavior-altering_parasites_an...</a>