Yes,i know!Because the carnivorous dinosaurs is very fierce and cruel.

I speech for the sake of this subject to find most datum.Such as the evolution of the earth and each period of life.I fina the form of the evolution of the earth,i will be enclose it.You said:"The most widely accepted theory is that a meteor impact was the most important cause for their extinction." I agree this version,but a meteor impact is after the dinosaur late stage,in order words this dinosaur die out last one.The dinosaurs extinction not only die out once but also many times.Than from the form I think that the dinosaurs appeared in period.I want to give a form about dinosaur era,but can't copy it for here.

*It is possible* that the inability of dinosaurs to regulate their internal body temperature was a factor in their extinction. Because, in general, the Earth's temperature cooled after their disappearence. I don't know exactly, perhaps this began while they still were very visible presence. The most widely accepted theory is that a meteor impact was the most important cause for their extinction. I think it is not accepted or known if they were warm-blooded or cold-blooded. I believe there is significant evidence to theorize that some species survived and developed into modern birds. I think geological time is divided into eras and then sub-divided into epochs. Maybe early dinosaurs appeared in the Cambrian era, along with early reptilees, but I'm not sure. If you are interested, check out a book on the topic by author/illustrator William Stout. His illustrations are really good and worth seeing. The title might just be "The Dinosaurs" or something simple like that.

I never had thoughts about dinosaurs untill 3 weeks ago when I saw Jurassic Park 3D. Some dinosaurs looked cute. If they are not extinct, and if I have enough lands, it would be fun to get one, but I would only want a herbivore, and you know the reasons!