Trillions of insects migrate across the globe each year, yet little is known about their journeys. So to look for clues, scientists in Germany took to the skies, placing tiny trackers on the backs of giant moths and following them by plane.
To the researchers’ surprise, the moths seemed to have a strong sense of where they were going. Even when the winds changed, the insects stayed on a straight course, the scientists reported in a study published Thursday in the journal Science.
