Americans are now consuming more chicken than beef or pork. To help meet the demand, Texas has become the sixth biggest state in poultry production. But more chickens mean more waste, and more pollution.
Mechanical engineer Maurizio Porfiri, of the Polytechnic Institute of New York University, designs robot fish. A few years ago, he found that real fish would mill about his aquatic robot, and now he's trying to understand why. His research suggests that it has less to do with how the robot looks, than how it makes fish feel.
Ken "The Bug Guy" MacNeil, host of the Science Channel's Bugging Out, has opened a pet shop devoted to insects in Tucson, Ariz. His inventory of about 10,000 includes tarantulas, scorpions and hissing cockroaches from Madagascar, all for sale as pets.
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