Anthony Cerrato  wrote in news:bnn5fr$eit$1
{at}darwin.ediacara.org:

> One thing which is obvious in my non-expert observation of
> sexual vs nonsexual creatures: only sexual creatures fall
> into the class of what I'd call "complex" life (and what are
> generally the most commonly used definitions of same.) I
> wonder what the general opinion is that sexuality is a
> prerequisite for bio-complexity (and possibly, resultant
> intelligence,) or if it plays little or no role in evolution
> of complex life. BTW, I'm excluding for the moment,
> aggregates of biological units in considering complexity
> (e.g., hives/nests, slime molds, etc.) although such are
> certainly pertinent with regard to semantics in the
> definitions of bio-compleity.            ...tonyC

If memory serves me both dandelions and rotifers reproduce exclusively 
asexually. Other animals and plants can do so under some conditions. Again 
going on memory, dandelions are thought to be a temporary exception to the 
general rule of sexual reproduction for "complex" life (i.e. they only 
recently adopted asexual reproduction and may revert in the future) and 
nobody has a good explanation for rotifers.

Yours,

Bill Morse
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