Posted On: 03/27/2013 12:45:51 PM
Post# of 63648
![](http://images.sciencedaily.com/2013/03/130327103039.jpg)
Controversial Worm Keeps Its Position as Progenitor of Humankind
Researchers are arguing about whether or not the Xenoturbella bocki worm is the progenitor of humankind. But new studies indicate that this is actually the case. ... > full story
- more on:
![](/m/images/thumb-up.png)
![](/m/images/thumb-down.png)