you would study nature
Dinosaurs are very related to birds and reptiles. One evidence that dinosaurs are related to birds is the dinosaur named Archeopthyx. At first, I really don't know the spelling of this dinosaur. But this dinosaur has feathers. It has a beak-like mouth and has sharp teeth.
It is probably because birds don't chew their food, they swallow it hole, like their dinosaur ancestors.
Birds are the only animals with feathers unless you count the dinosaur-birds like archeopteryx. Look for their beaks, scaly legs, feathers and small eyes.
Scientists consider birds a type of dinosaur. Birds are still alive and abundant.
All Birds are suggested to be in relation to Dinosaur's as their were flying Dinosaur's (not actually Dinosaur's but distantly related) called Pterasaurs. their were also Dinosaurs which were thought to have had feather's. In fact Birds are so like Dinosaurs that some Dinosaur's are considered to have had air sacks like Birds.By kaldinoexpert ,age 22
The study of dinosaur's fossils is called:Paleontologists/Paleontology
No body knows. Though they have an idea they might be like morden day birds or reptiles
A Pterodactyl was a dinosaur that looked like a bird.
Ornothology is the study of birds
birds
Birds are direct descendants to the dinosaur group theropoda.
how old a dinosaur is all depends on what type of dinosaur it is. it also depends on whether or not the dinosaur is extinct or still living in a way. such as birds. some birds decended from dinosaurs so the dinosaur lives on in an evolved way. making your question unanswerable , sorry :) x