MADISON, Wis. -- Sixty years ago, the plows ended their reign and the fields were allowed to return to nature -- allowed to become the woodland forests they once were. But even now, the ghosts of land ...

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(CNN) — In an ancient temperate forest in what is now Oregon, an insect dug deep into a sandy bank near a creek. There, in a damp burrow, she laid dozens of oblong eggs, about 50 in all. Despite her ...