Fossil records reveal that dinosaurs thrived on this planet for millions of years, millions of years ago. If they existed for so long why didn't they evolve into much more intelligent creatures? Aren't a few million years long enough to make that evolutionary leap to, say, developing a language, a form of writing, building of towns and cities, development of spiritual concepts...perhaps you see where I am going with this. Is evolution a blanket concept or is it focused on specific species? Doesn't everything in existence "evolve"? I would like to hear some points of view on this, please.