Feathered Dinosaurs
The Ancients
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The Evolution of Flightless Dinosaurs
Flight is great, but it's a very expensive hobby. So when birds learn to fly, they use every opportunity possible to lose the habit of flight. The dodo was basically a giant pigeon that his ancestors got marooned on an island and because there were no predators, it could live without flight and get bigger. I talked a little earlier about a Cretaceous bird called ichthyornis that looked like a seagull with teeth that was found in the ocean that is now Kansas in the Cretaceous. Not only was it flightless, it had almost no wings at all. It was more like a kind of penguin. These were early birds. They still
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