Parece que foi " O Querido da Evolução " por Scott Westerfeld.
She peered at the statue for a solid, unblinking minute. Protesting tears gathered to blur her vision, but Rathere's gaze did not waver. Another minute, and a tic tugged at one eye, taking up the steady rhythm of her heartbeat.
She kept watching.
"Ha!" she finally proclaimed. "I saw it move."
"Where?" asked a voice in her head, unconvinced.
Rathere rubbed her eyes with the heels of her hands, mouth open, awestruck by the shooting red stars behind her eyelids. Her blinks made up now for the lost minutes, and she squinted at the dusty town square.
"His foot," she announced, "it moved. But maybe... only a centimeter."