A few days ago, Brittany Moore and her year-and-a-half-old toddler, Ethan, were in the backyard blowing bubbles into the Georgia summer air. As one of those rainbow-hued wet bubbles drifted upward into the sky, little Ethan ran after it. But over their backyard fence and into the woods it sailed.
Halted by the fence, Ethan stood there pointing. “Feet,” he called to his mother. “Feet.”