Stegosaurus was common only on well drained, dry soil.

As an undergraduate I held many small jobs as an illustrator.

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...

At Harvard I was in charge of the comparative anatomy labs.

Land bridges were everywhere during the extinction, many species were spreading, and there were many diseases.

I also got a chance to go to the American Museum in New York, which helped my interest.

I also discovered the only complete Brontosaurus skull.

The evidence is overwhelming that birds are dinosaurs.

Fossils have richer stories to tell – about the lub-dub of dinosaur life – than we have been willing to listen to.

I want to be the Bob DeNiro of the Jurassic.

You could arm-wrestle with a T. rex and win, but you shouldn’t because it only makes them mad.

Feathers predate birds.

In 1941 Richard Owen said that the dinosaurs were almost hot blooded.

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...

One researcher just determined that African and Indian elephants make each other sick. When a new animal or plant is introduced to a habitat bad things happen. The biggest danger to native wildlife is foreign...

To me it seems that the warm blooded dinosaurs replaced advanced mammal ancestors that were warm blooded, also.

One of my major goals is to develop a web of the small Wyoming museums and create a major museum system. There are about eight of these museums, and they are all scattered.

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.

Birds evolved from a small raptor like theropod.

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.

It was not an asteroid or comet, because it would have killed everything.

The impact of the magazine was very strong. As I said, it portrayed dinosaurs as part of the geological history, part of the story of life on earth. It struck that paleontology was the career...

Since then I have held many jobs at museums in Colorado and Wyoming. I have also taught summer courses at the University of Colorado.

Also, while I was at Yale, I had a job teaching kids at the museum.