Fossils have richer stories to tell - about the lub-dub of dinosaur life - than we have been willing to listen to.
When looking at the evidence of feeding on large prey, you can see every size tooth from hatchling to adult in one spot. The babies may have been fed in the nest until they were full grown, like in eagles and hawks.
Often extinctions in the ocean occur at the same time as those on land. Then again, the ice age extinctions lost many big animals, but not many sea faring ones.
To me it seems that the warm blooded dinosaurs replaced advanced mammal ancestors that were warm blooded, also.
Dinosaurs are the jumper cables to the human mind. Kids can't curb their enthusiasm when they're in a hall of dinosaurs and mammoths and mammoth hunters and trilobites and giant fish that could chomp up a shark. These natural objects in motion and context make kids want to read; you can't stop them from reading and thinking.
I'll bet you a six-pack of Coors that pretty soon, people will be discovering Cretaceous parasites inside Cretaceous bones. The possibility of looking into epidemiology and pathology is pretty cool.
