Kristi Curry Rogers, Paleontologist: How Dinosaurs Grow

Length: 
6:01

Kristi Curry Rogers wants to understand how dinosaurs got to their gigantic sizes. As a paleontologist she looks for fossilized dinosaur bones and then analyzes the bone tissue to see how fast the animal grew. Like tree-rings, bones show a record of growth rate. Curry Rogers discovered that unlike modern reptiles, dinosaurs grew quickly, an evolutionary advantage for young dinosaurs living amongst huge predators.

Next Generation Science Standards for this Video

The structure of dinosaur bones shows adaptations to fast growth.

Fossils dinosaurs are evidence of a past diversity and extinction. They also show the differences between dinosaurs and modern reptiles.

Paleontologist Kristi Curry Rogers studies fossilized dinosaur bone tissue and concludes from looking at them microscopically that dinosaur bones grew very quickly.

Paleontologist Kristi Curry Rogers studies fossilized dinosaur bone tissue and concludes from looking at them microscopically that dinosaur bones grew very quickly.

Paleontologist Kristi Curry Rogers looks for dinosaur fossils in the field and studies the structure of their bones in the lab.

Scientist in this video

There's a good evolutionary reason for growing quickly. Basically, you have to grow fast so you can beat out the predators and be an adult and reach sexual maturity in time to actually reproduce and send your genes on through the gene pool. -- Kristi Curry Rogers