Why do we sleep?

[Paul Runyan]

In <2lc1mj$89j at auggie.CCIT.Arizona.EDU> robertd at argon.gas.uug.arizona.edu (Robert Dejournett) writes:

>  I think you all are missing the key issue, i think that animals sleep 
>for evolutionary reassons; those with good day vision can't do much at night,
>so they 'shutdown', oposite for those nocternile things.  You notice that 
>sponges and clams and other 'lower' animals don't sleep.

>-Rob 

How would'ya tell?

- Paul

-- 
Paul Runyan
Steedman Science & Engineering
31 Bishop Street Jolimont 6014 Western Australia
Tel: 61 (9) 387 7955   Fax: 61 (9) 387 6686