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Unfortunately, with dinosaurs, we haven't had enough specimens to determine how much variation there is within a species.

The dinosaur's eloquent lesson is that if some bigness is good, an overabundance of bigness is not necessarily better.

Certainly paleontologists have found samples of an extremely small fraction, only, of the earth's extinct species, and even for groups that are most readily preserved and found as fossils they can never expect to find more than a fraction.

My father had owned a ranch when he was younger, in Montana, and he remembered riding his horse across the prairie and seeing some large bones sticking out of the ground. He was enough of a geologist, being a sand and gravel man, to have a pretty good notion that they were dinosaur bones.

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

I'm trying to figure out the biology of dinosaurs and what they were like as living creatures.

Horizontal and vertical sprawl... are the dinosaurs of an ending fossil-fuel age of synthetic culture.

The evidence is overwhelming that birds are dinosaurs.

I've got a 12-year-old grandson who, when he was 3 years old, before he could say many other words, could name the different kinds of dinosaurs.

What you do on a dinosaur expedition is you hike and look at the ground. You find bones sticking out of the dirt and, once you see something, you dig.