It's Alive!

WHEN I FIRST MEET PLEO, the tiny dinosaur is curled up on a kitchen table, its long tail and big head pulled inward. It's snoring quietly, emitting a strangely soothing sound, almost like the amplified purring of a guinea pig. I'm tempted to reach out and touch it – but it looks so peaceful, I can't bring myself to disturb it. Then I realize what I'm doing: I'm worrying about waking up a robot. Caleb Chung seems to understand my reluctance. "It's OK," the toy's inventor says, motioning to the little green lizard. But before I do, Pleo wakes up on its own, fluttering open its doelike eyes and lifting its head. There's a barely perceptible whizzing as its 14 internal motors spring into action and it struggles upright, stretching itself to get the kinks out.