While more evidence is needed to confirm whether or not ALL dinosaurs were warm blooded, we know for sure that the bird-like dinosaurs were warm
blooded as their modern descendants are.
Some dinosaurs seem built for speed and agility, like Raptors and T-Rex, implying a high metabolic rate and therefore being warm-blooded. Some
dinosaurs fossils are found in arctic areas. Even though it was warmer then, cold-blooded animals would still have a hard time living in colder
My bet is that they were all warm blooded, but this is just speculation at this point.
With regards to dinosaurs evolving intelligence, maybe. They were on their way, bipedal, expanding brain, two arms etc. Whether we will find "Smart
Dinosaurs May Be Inhabiting Other Planets", maybe not. Here's why.
Long before the dinosaurs lived, during the Permian period (290 to 248 million years ago) there were "mammal-like reptiles":
To me, it looks these animals were on their way to evolving into "real mammals".
Around 251 million years ago, the greatest extinction level event on earth ever occurred. Over 90 percent of all species on earth died, including the
mammal-like reptiles. They are still trying to figure out if it was caused by a super-volcano eruption in modern day Siberia or an asteroid strike.
Regardless, it took life 30 million years to recover from the "Great Dying".
After this extinction event the dinosaurs started to appear. If the Great Dying had not occurred, dinosaurs may not have evolved and mammals would
have been the dominant life form. I find it ironic that first an ELE killed off mammals and gave dinosaurs a chance to thrive, then another ELE killed
off the dinosaurs and gave mammals a chance to thrive.
So we may not find intelligent dinosaurs, or even dumb ones, on other planets since mammals seem to be on the evolutionary fast track, at least on
edit on 29-6-2012 by Nicolas Flamel because: (no reason given)