dinosaur evolution

[anton.eissens@philips.com]

Regarding the comment of Mr. Rowe on the question I posted in my previous mail 
about evolution, and if this happens for a reason or not, it was said that this 
subject was not in place at this list.
Perhaps it was because of the general view of evolution but if we can clear up 
this some what general question we may are better equiped to deal with question 
of evolution in regards to dinosaurs.
yesterday I saw a documentary of dinosaurs on National Geographic, it was about 
Jobaria and of the dinosaur-birds from China. 
They stated that because of the size and fewer numbers of big animals that they 
where more fragile to enviremental changes than smaller and numerous animals, 
which I can agree with.
But to come back to the question of evolution, I like to believe animals, in 
this case dinosaur species, evolved and took advantage of a niche that was 
created in the envirement so these new adapted species could take advantage of 
this new food suply for 
instance. but to get back to the subject of evolution which happens with no 
visible advantages, can anyone give me some examples in the world of dinosaurs 
of evolutionary changes which seem to happen with no clear reason?
hope I have now twisted the question of evolution in the world of dinosaurs 
which seems fit to be posted and debated on this list.

Anton Eissens
Philips Semiconductors bv
Innovation & Engineering Group (IEG)
phone Philips: 0599-632483
e-mail: anton.eissens@philips.com