Re: NANFA-- OFF TOPIC - Speaking of symbiotic relationships RE;

Rose Lawn Museum (roselawn_at_mindspring.com)
Fri, 30 Aug 2002 14:54:02 -0400

My guess would be that it keeps them (often the only vegetation for miles)
from being readily eaten.

Steven A. Ellis
Kennesaw, GA

At 01:39 PM 8/30/02 -0500, you wrote:
>While we have diverged onto plants... I was wondering what the
evolutionalry advantge would be to thorns other than snagging the seine as
I pass by? South Texas is overrun by thorny bushes, trees, grasses.
Everything has a thorn it seems. Its also interesting that the thorns are
forthe most part restricted to semiarid biomes. Farther North of course
blackberry bushes and the like, are present but thorny plants are not as
prevelent.
>
>John
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