"Andy MacAskill"  wrote in message
news:b9ji50$2q2e$1{at}darwin.ediacara.org...
> s11002144 wrote:
> >
> > Since the discovrey that the dinosours are the ansesters of
> > morden birds dinosours are apprering in am array of
> > coluurs.But the question of what their true colour still
> > lingers on. Bilologically speaking in terms of svrvival of
> > the fittest bright colour dinosours would not have survived
> > because of their bright colours they would have been spotted
> > and raised alarm in the prey communitty because there was
> > not much form of camaflouge .The plants were green and
> > flowering plants didnot evlove till later so what could hve
> > been their true colours?
>
> Interesting post (with interesting spelling). You know who's probably
> really good with stuff like this? alt.bio.paleontology.
>
> [moderator's note: Mmm. I'd try sci.bio.paleontology, myself. - JAH]
>
> I should see what those guys have been up to.
>
> I have two questions about the dinosaurs: (1) Is it generally accepted
> today (in the scientific community--and I presume most here are in the
> scientific community) that dinosaurs are the ancestors of birds, and
> (2), similarly, is it generally accepted that indeed an asteroid "wiped
> out" the dinosaurs.
>
> I still find the asteroid theory difficult to accept,
> but--unfortunately--I am not a scientist (more of an arm-chair
> enthusiast for science).
>

It may be hard for some to believe that an ity bity bullet through the brain
will kill them but the fact is they do. The most likely incomplete list of
ecological disasters that impact would have caused might be enough to kill
our species. It's very hard to live without food, extreme cold is hard to
take and having world wide forest fires is bad news, having all the coastal
regions on the planet go deep under water would terminate most of the human
race on day one. Acid rain all over the place is a bad thing; it kills the
plants and the animals starve. Earthquakes that would flatten every building
on the planet might make getting through the decade or so it would take for
things to stablize sort of rough. After the cold due to dust in the air they
had a heat wave due to a surplus of carbon dioxide in the air.

That's just the more obvious stuff. A better question seems to be why
doesn't Earth get hit more often. What evedence we have on other solar
systems suggests that ours is unusally safe with most things having a more
or less circular orbit and mighty Jupiter taking most of the hits that could
have limited life on Earth to microbes.
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