Your Evolution Dollars At Work: Chicken Head Tracking!
By Greg Perkins
In honor of Darwin's 200th birthday, here's a little evolutionary coolness to make you smile -- and want to go play with a chicken!
Seriously, this is an awesome set of adaptations; just think of the myriad feedback mechanisms at work! Plus, it made me smile... and now I want to go play with a chicken.






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Paul Hsieh is a physician specializing in orthopedic and emergency radiology. He blogs about science, technology, and random humorous items at
Greg Perkins is a software architect working in the R&D labs at Hewlett-Packard, Boise. His degree is in mathematics and computer science. Greg hosts 
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