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RE: Sinosauropteryx filament melanosomes challenged
On Wed, Dec 8th, 2010 at 12:30 PM, Sim Koning <firstname.lastname@example.org> wrote:
> I would definitely say that archosaurs and
> mammals are higher forms of life than reptiles, but not because they are
> "superior" but because
> they tend to be more complex...
That's debatable. Some lineages undergo simplification over time (snakes
becoming legless, avian
genomes becoming more compact, etc). Sometimes simpler is best.
> more intelligent...
Given that 99.9999+% of species that have ever existed managed quite well
(whatever that is), it would seem to be an adaptation that is no more important
than any other.
> use more energy...
This can be a detriment in areas of low productivity. Ectotherms pretty much
rule the planet's
deserts because of their lower energy requirements.
> and have the potential to produce sapient life.
As with intelligence, I don't see this as an adaptation that is any more
important than any other.
The most successful form of life in the planet's history would be bacterial. In
fact they are *still*
the most successful forms of life. They don't exhibit any of your 'higher'
characteristics, yet if a
catastrophic event were to happen to the planet, they would likely be the only
life forms to survive.
Now that's what I call a 'higher' life form.
Spatial Data Analyst Australian Dinosaurs
Melbourne, Australia http://home.alphalink.com.au/~dannj