The common box turtle is found just about anywhere in the continental United States east of Colorado. For all their ubiquity, it's unclear how many there are or how they're faring in the face of many threats—from lawn mowers to climate change to criminals. So today, science correspondent Nell Greenfieldboyce presents the researchers hunting for turtles—and for answers. They're creating a century-long study to monitor thousands of box turtles in North Carolina.

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