<story><title>Artificial jellyfish made from silicone and rat muscle (video)</title><url>http://www.nature.com/news/artificial-jellyfish-built-from-rat-cells-1.11046</url><text></text></story><parent_chain></parent_chain><comment><author>user49598</author><text>On a somewhat related note, as far as animals go, jelly fish are nuts. I mean they&apos;re barely animals at all. From wikipedia: &quot;Most jellyfish do not have specialized digestive, osmoregulatory, central nervous, respiratory, or circulatory systems.&quot; and, &quot;Jellyfish have no brain nor central nervous system&quot;. No brain? I mean come on. Jelly fish are floating piles of goo with absolutely no purpose or delight in life other than being floating piles of goo. It&apos;s made weirder by how big some of them get, &quot;Jellyfish range from about one millimeter in bell height and diameter to nearly two meters in bell height and diameter; the tentacles and mouth parts usually extend beyond this bell dimension.&quot; Giant brainless animals roam the ocean looking to sting and absorb prey without ever really knowing they&apos;re even doing it. They&apos;re pretty much ocean zombies.&lt;p&gt;They&apos;re nuts, and are a great example of how evolution cares about nothing but survival.&lt;p&gt;[1]&lt;a href=&quot;https://en.wikipedia.org/wiki/Jellyfish&quot; rel=&quot;nofollow&quot;&gt;https://en.wikipedia.org/wiki/Jellyfish&lt;/a&gt;</text></comment>
<story><title>Artificial jellyfish made from silicone and rat muscle (video)</title><url>http://www.nature.com/news/artificial-jellyfish-built-from-rat-cells-1.11046</url><text></text></story><parent_chain></parent_chain><comment><author>arturadib</author><text>&amp;#62; &lt;i&gt;We built an animal&lt;/i&gt;&lt;p&gt;No they didn&apos;t. They built a sheet of biological material that pulsates when placed in an electrical field. Animals reproduce, and hence adapt and evolve.&lt;p&gt;It&apos;s a neat gadget, but let&apos;s not get too carried away.</text></comment>