Invisible freeways of wind may account for the similarity of plant species on islands that lie thousands of kilometers apart, according to a novel study of satellite data.
WAY TO BLOW. Colors show how winds connected Bouvet Island to neighboring locations from Feb. 1 to 10 in 2000. Winds easily give hitchhiking plant snippets a lift from the island to areas in the brightest peach zone but are less and less likely to carry plant material to the areas with progressively darker colors.
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