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How Dinosaurs Shrank and Became Birds
An anonymous reader writes: Discoveries have shown that bird-specific features like feathers began to emerge long before the evolution of birds, indicating that birds simply adapted a number of pre-existing features to a new use. And recent research suggests that a few simple changes — among them the adoption of a more babylike skull shape into adulthood — likely played essential roles in the final push to bird-hood. Not only are birds much smaller than their dinosaur ancestors, they closely resemble dinosaur embryos. Adaptations such as these may have paved the way for modern birds' distinguishing features, namely their ability to fly and their remarkably agile beaks. The work demonstrates how huge evolutionary changes can result from a series of small evolutionary steps.
Beaks have *one* joint. How the hell they be agile?
Go and watch a dextrous bird (such as a smart parrot) manipulating things with its beak. You won't be incredulous that such a thing is possible when you've seen it in action.
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Go not to /. for intelligent discussion of evolutionary biology.
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