Emily Anthes is a science journalist whose articles have appeared in the New York Times, Wired, Scientific American, Psychology Today, and other publications. She is also the author of Instant Egghead Guide: The Mind.
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For centuries, we've toyed with our creature companions, breeding dogs that herd and hunt, housecats that look like tigers, and teacup pigs that fit snugly in our handbags. But what happens when we take animal alteration a step further, engineering a cat ... SEE MORE