Fossils have richer stories to tell - about the lub-dub of dinosaur life - than we have been willing to listen to.
Birds evolved from a small raptor like theropod.
Feathers predate birds.
It was not an asteroid or comet, because it would have killed everything.
Since then I have held many jobs at museums in Colorado and Wyoming. I have also taught summer courses at the University of Colorado.
Stegosaurus was common only on well drained, dry soil.
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.
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 wildlife.
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.
Land bridges were everywhere during the extinction, many species were spreading, and there were many diseases.
At Harvard I was in charge of the comparative anatomy labs.
To me it seems that the warm blooded dinosaurs replaced advanced mammal ancestors that were warm blooded, also.
As an undergraduate I held many small jobs as an illustrator.
In 1941 Richard Owen said that the dinosaurs were almost hot blooded.
Also, while I was at Yale, I had a job teaching kids at the museum.
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