jabriol
2003-09-20 23:40:07 UTC
Reptiles are cold-blooded animals, meaning that their internal
will either increase or decrease depending upon the outside temperature.
Please refer me to where evolutionists have stated that birds evolvedfrom modern reptiles.
never the less here :
http://www.aquatic.uoguelph.ca/birds/morphevol/main.htm
Birds, on the other hand, are warm-blooded; their bodies maintain a
relatively constant internal temperature regardless of the temperature
outside. To solve the puzzle of how warm-blooded birds came from
cold-blooded reptiles, some evolutionists now say that some of the
relatively constant internal temperature regardless of the temperature
outside. To solve the puzzle of how warm-blooded birds came from
cold-blooded reptiles, some evolutionists now say that some of the
(which were reptiles) were warm-blooded. But the general view is still
Robert Jastrow observes: "Dinosaurs, like all reptiles, were
animals."
There is no evidence that conclusively proves that dinosaurs wereectothermic ( "cold blooded" to you). On the contrary, there is
evidence, according to, I believe, Robert Bakker, that at least some
of them were endothermic ("warm blooded" to you).
so, Robert Bakker versus Robert Jastrow? are you saying that uh.. there is a
bit of disagreements among scientist?
let me give you some recent material, to back up some old date material...
peered-review articles at that:
http://www.newscientist.com/hottopics/dinosaurs/coldbloo.jsp
excerpt:
Palaeontologists still cannot agree whether dinosaurs were warm-blooded or
cold-blooded, and there is still no conclusive evidence to settle the
argument. But John Ruben at Oregon State University in Corvallis and Williem
Hillenius, who used to be one of his students, say that the presence or
absence of scrolls of bone or cartilage in the nose, called respiratory
turbinates, could decide the question.
All warm-blooded animals have respiratory turbinates, although they evolved
independently in birds and mammals. Cold-blooded species do not have them at
all. When a bird or mammal breathes, the warm exhaled air passes over the
turbinates and is cooled. This causes the water vapour in the air to
condense on the membranes covering the scrolls. If this did not happen, the
rapid-breathing warm-blooded animals would dehydrate.
Ruben and Hillenius reason that if dinosaurs were warm-blooded, they would
have needed respiratory turbinates too. 'This is really the only way to cut
down on respiratory water loss,' says Ruben. With the help of CAT scans, the
researchers are peering into the fossilised skulls of dinosaurs to see if
they can find any trace of the scrolls.
Dinosaurs were not reptiles - they were a different group of animals,
and to my knowledge there is no "barrier" between endotherms and
ectotherms, because there is no solid demarcation between the two.
Even today there is a wide variation in maintained temperatures even
in mammals.
some people may disagree with you:and to my knowledge there is no "barrier" between endotherms and
ectotherms, because there is no solid demarcation between the two.
Even today there is a wide variation in maintained temperatures even
in mammals.
http://www.cmnh.org/dinoarch/2000Apr/msg00382.html
Are dinosaurs reptiles?
Yes one of those simple questions that I have a hard time answering
withoutYes one of those simple questions that I have a hard time answering
boring the heck out of everyone. So, I thought I'd leave it up to the
experts, who have probably answered this question to droves of school
childrenexperts, who have probably answered this question to droves of school
in simple language. The kind of simple language that would be good for a
TVspecial aimed at a very general audience. Sometimes knowing a lot about a
subject makes the simplest question difficult. And I thought I'd never
needsubject makes the simplest question difficult. And I thought I'd never
that "Handy Answers" book...shame,shame,shame.
Answer: yesOld System of Classification (Linnaean): Reptilia includes all
land-dwelling vertebrates which lay eggs with shells except for birds
(Aves) and mammals (Mammalia).
New System (cladistic/phylogenetic): Reptilia includes the most recent
common ancestor of turtles, crocodiles, snakes, lizards, and tuataras,
plus all of that ancestor's descendants. Dinosauria is a subset of this
(and Aves a subset of Dinosauria -- hence Aves is part of Reptilia, too).
I think Bakker's Linnaean classification might be the only one that
excluded Dinosauria from Reptilia.
-- T. Michael Keesey ..................................
<***@dinosauricon.com>
My Worlds (including The Dinosauricon) ...
<http://dinosauricon.com/keesey>
I guess not everyone agree with your buddy Bakker eh?
You see, your knowledge on the subject is about as fanatical as a
creationist...
you throw around opinions, as they were bonafide 100% Fact...
Same arrogance, used by evolutionist, pseudoscientist wannabe, throwing
evolution as 100 fact in the school system.. Student should be taught that
there
is disagreements among real scientists... now how come stuff like this shows
upn in the T.O Faqs huh..????
Is this suppsoed to be one of your "colossal holes"? How does it
constitute a hole?
Yesconstitute a hole?
the Fact, that there is still disagreement among real scientist is a
COLOSSAL hole among itself.. ofcourse you will tryn to play this one down as
well..
This is not even close to a "colossal hole". Even
if you could support it, which you apparently cannot, since once again
you are reduced to plagiarising, unreferenced, someone else's work, it
does not constitute a "colossal hole".
I just did support it.. with updated material, and I did not use ayou are reduced to plagiarising, unreferenced, someone else's work, it
does not constitute a "colossal hole".
"creationist" website... on the other hand all you can do is quote T.O un
peered review Faq's
It offers no barrier to
evolution unless you can demonstrate that it is impossible for any
ectotherm to develop endothermy. To my knowledge this has never been
done. Or do you have a reference to evidence that it is impossible?
I thought not.
thatectotherm to develop endothermy. To my knowledge this has never been
done. Or do you have a reference to evidence that it is impossible?
I thought not.
Lecomte du Noüy, the French evolutionist, said concerning the belief
warm-blooded birds came from cold-blooded reptiles: "This stands out
as one of the greatest puzzles of evolution." He also made the admission
that birds have "all the unsatisfactory characteristics of absolute
creation"-unsatisfactory, that is, to the theory of evolution.
Did Pierre Lecomte du Noüy say this in his book "Human Destiny" inthat birds have "all the unsatisfactory characteristics of absolute
creation"-unsatisfactory, that is, to the theory of evolution.
1947, or do you actually have some evidence from *this* millenium?
You plagiarised the article about colossal holes from two decades ago
and now you think to support it with a reference from over half a
century ago?
eh??/
Give it up, this is a hole you can not cover up...
I just snipped the same repeitive arrogance ...
now stop pretending you know so much.. you embarrasing other
pseudo-evolutionist...