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Exploration Questions: What is a dinosaur?

Grab your notebook or computer and write out your answer to each of the following questions. Then compare your answer to the suggested answer found in the “Answers to exploration questions” article. Have fun! (Hint: the information needed to answer these questions can be found in the video and the articles.)
1. All dinosaurs evolved from the very first dinosaur, the common ancestor. What do scientists know about this common ancestor?
2. Archaeopteryx was the most primitive known bird. How was Archaeopteryx similar to modern birds? How was it different from modern birds, and more like advanced non-avian dinosaurs?
3. Explain how a cladogram works.

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