Re: [Phys-l] H. Sapiens

[brian whatcott <betwys1@sbcglobal.net>]

 Amusing to notice that Detlev Arendt at EMBL , Heidelberg working with 
toy brain models, has found that an ancient sea worm , a ragworm called 
Platynereis dumerilii whose 'mushroom bodies' integrate sensory inputs 
(for smell) has some interesting features.

He tagged 42 genes associated with brain development,  signaling their 
activation with fluorescent markers.The pattern of gene expression  they 
found was strikingly similar to the anologous structure in insects,  but 
also resembled the vertebrate pattern "in shocking detail..."
 (Cell, vol 142, p800, reported in NewScientist 11 Sep 2010)

Brian W


On 9/12/2010 9:15 PM, Hodges, Laurent [PHYSA] wrote:
> /snip/
> Of course, we are all related.  Even the chipmunk in your yard, the spiders in your house, the fungus on your trees, the grass in your lawn, etc., etc., are distant cousins of yours.
>
> Laurent Hodges
> ________________________________________
> From: phys-l-bounces@carnot.physics.buffalo.edu [phys-
> /snip/    One can easily be led to suppose that
> the entire world population is related to all others as not very distant
> cousins.
>      Any insights?
>
> Brian W